72.3 g of ice at -15.0 o C has heat energy added to it until it becomes steam at 145 o C. Calculate the total amount of heat energy needed (in Joules) to accomplish this.

Answers

Answer 1

Answer:

H = 226,311.66J

Explanation:

Hello there!

In this case, according to the thermodynamic path ice takes up to steam:

1. Ice (-15°C) --> Ice (0°C) H1

2. Ice (0°C) ---> Water (0°C) H2

3. Water (0°C) --> Water (100°C) H3

4. Water (100°C) --> Steam (100°C) H4

5. Steam (100°C) --> Steam (145°C) H5

It is possible for us to infer that H1, H3 and H5 are computed by means of the mass, specific heat and change in temperature as sensible heat. On the flip side, H2 and H4 are computed as latent heat. Thus, we proceed as follows:

[tex]H1=72.3g*2.093\frac{J}{g\°C}(0+15)\°C=2269.86J\\\\H2=72.3g*334.1\frac{J}{g}=24155.43J\\\\H3=72.3g*4.184 \frac{J}{g\°C}*(100-0)\°C=30250.32J\\\\H4=72.3g*2255.83\frac{J}{g}=163096.51J\\\\H5=72.3g* 2.010 \frac{J}{g\°C}*(145-100)\°C=6539.54J[/tex]

Then, we add them up to obtain the total heat:

[tex]H=H1+H2+H3+H4+H5\\\\H=2269.86J+24155.43J+30250.32J+163096.51J+6539.54J\\\\H=226311.66J[/tex]

Best regards!


Related Questions

Is college worth it

Answers

Answer:

in my opinion not really

Explanation:

Read the following paragraph from the section "Dreaming Of A World Deep Below."


The interior of our planet has long held a fascination for philosophers and storytellers. Some have speculated that another inhabited world lies beneath our own. In 1864, Jules Verne’s novel "Journey to the Center of the Earth" described the fictional adventures of explorers traveling under our planet’s surface. It was a best-seller. People wondered if the world Verne described below our own could be real.


Why does the author include this paragraph in the article?
Question 9 options:


to show how much scientific progress regarding the Earth's core was made during Lehmann's lifetime


to explain a number of popular theories concerning the composition of the Earth's core


to demonstrate how Lehmann's discovery confirmed what Jules Verne already knew about the Earth's core


to describe the attitudes Lehmann needed to overcome in order to introduce her work to the scientific community

Answers

Answer:

B

Explanation:

The interior planet has fascinated a lot of people so a lot of theories have been made about what's in there.

The reason author include this paragraph in the article is to explain a number of popular theories concerning the composition of the Earth's core. Thus, option B is correct.

What is acronym?

Acronym has been defined as the short form of long words such as very important person and the acronym of very important person has been VIP. The word acronym has been used to denote the short term of the  word in which two or more than two words combined together to form new short word.

Acronym always starts with capital latter and the first word's letter is always capital. Capitalization has been the most important part of the writing as it has the rule of writing that the first latter of the word that starts a sentence must be capital or starts with capital latter.

The sentence has a group of sensible or meaningful word that combines together to form a complete and senseful sentence. The sentence has of several type such as positive sentence, negative sentence, exclamatory sentence as well as introgative sentence.

Therefore, The reason author include this paragraph in the article is to explain a number of popular theories concerning the composition of the Earth's core. Thus, option B is correct.

Learn more about acronym on:

https://brainly.com/question/2696106

#SPJ5

Which of these is an example of chemical digestion?
(a person cutting food into small pieces with a knife)
(B
saliva breaking down molecules in the mouth)
(C bones leaching calcium into the bloodstream
)
(D a blender mixing solid food into a paste)

Answers

Answer:

B. Saliva breaking down molecules in the mouth

Explanation:

I'm pretty sure it's this because saliva contains enzymes and enzymes use chemicals to break down food in your mouth. For example, your mouth has an enzyme called amylase which helps to break down starches.

Answer:

B. Saliva breaking down molecules in the mouth

Explanation:

I'm pretty sure it's this because saliva contains enzymes and enzymes use chemicals to break down food in your mouth. For example, your mouth has an enzyme called amylase which helps to break down starches.Explanation:

what is the total number of valence electrons un xenon(xe)

Answers

Answer:

8

Explanation:

Hope this helps you :)

how many neutrons does the isotope of hydrogen called deuterium have

Answers

Answer:

The deuterium has one neutron and one proton (mass number equals 2) whereas, the far more common hydrogen isotope, protium, has no neutons in the middle.

Explanation

In an experiment to determine how to make sulfer trioxide, a chemist combines 32.0g of sulfer with 50.0g of oxygen. She finds that she made 80.0g of sulfer trioxide and had 2.0 g of leftover oxygen. How would the chemist make 100.0 g of sulfer trioxide so that she has no leftovers?

Answers

Explanation:

i Forgot the answer sorry but ihave that module

Mountains form when plates _______.



collide (convergent boundary)


have faulting occur


divide (divergent boundary)


slide past each other (transform boundary

Answers

Answer:

They form when plates collide. I hope this helps you!

Copperhead snakes can reproduce both sexually and asexually. which option describes a situation where sexual reproduction is more advantageous for the copperhead snake.

A. a new disease develops , so having more genetic variation among there off spring is an advantage.

B. a new type of pray arrives in the environment , so they have more food sources.

C. a short and mild winter makes the environment more livable for them and all the other organisms in the area.

D. they migrate to a new location where prey and shelter are more abundant and easier to find.

Answers

Answer:

Answer A:

a new disease develops , so having more genetic variation among there off spring is an advantage.

Not 100% sure but A seems the most likely answer.

Explanation:

The question is asking where sexual reproduction is more of an advantage and I'd say that having more genetic variation would be caused by sexual reproduction and not as much or at all in asexual reproduction.

with B, C, and D. It wouldn't really be an advantage to do one or the other in this context.

Potential Energy vs Height
This graph shows the relationship between the height of
an object and the object's gravitational potential energy
Potential Energy vs Mass
This graph shows the relationship between the most
an object and the object's gravitational al energy
100
100
80
80
60
60
Potential energy (J)
Potential energy (J)
40
40
20
20
04
0
0
0
20
80
100
20
80
100
40 60
Height (m)
40 60
Mass (kg)
21. Look at the graphs of gravitational potential energy, height, and mass. Based on
these graphs, write an argument on whether height or mass has a greater effect on
gravitational potential energy
cos

Answers

Answer:

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

Explanation:

Which atom generally obtains a stable configuration by sharing electrons?

phosphorus (P)
magnesium (Mg)
lithium (LI
chlorine (CI)

Answers

Answer: Phosphorus (P)

Explanation: Phosphorous has 5 valence electrons so it will share some to become stable.

Answer: Phosphorus(P)

what is the change in atomic mass when an atom emits a beta particle

Answers

Answer:

A neutron in the nucleus converts to a proton and a beta particle. The nucleus ejects the beta particle and some gamma radiation. The new atom retains the same mass number, but the number of protons increases to 44.

Explanation:

mark me the Brainliest pls..

what two functional groups are found in monosaccharides

Answers

a carbonyl group and hydroxyl group

7. Calculate the net charge of the following atoms.
Atom A: has 6 protons and 4 electrons
Atom B: has 9 protons and 9 electrons
Atom C: has 10 protons and 14 electrons
Atom D: has 33 protons and 29 electrons

Answers

Answer:

any atom that contains six protons is the element carbon and has the atomic number 6, regardless of how many neutrons or electrons it may have.

Explanation:

Answer:

Atom A: +2 Atom B: 0 Atom C: -4 Atom D: +4

Explanation:

We know that protons have a positive charge and electrons have a negative charge. Therefore, we will treat the electrons as a negative number. The net charge is the sum of electrons and protons.

Atom A = 6 + (-4)

because electrons as negative.

Net charge = +2

Atom B = 9 + (-9)

Net charge = 0, or neutral

Atom C = 10 + (-14)

Net charge = -4

Atom D = 33 + (-29)

Net charge = +4

What volume of water has a mass of 1 kg?

Answers

Answer:

the value of water is 1000

classify these diatomic molecules as diamagnetic or paramagnetic.

Answers

The molecules with paired electrons are known as diamagnetic whereas, the molecules with unpaired ones are called as paramagnetic molecules. Explanation: The diamagnetic properties and paramagnetic properties of the molecules are determined on the basis of electrons.

I have a question does Neptune have a atmosphere?

Answers

Answer:

Neptune has a dynamic atmosphere with a shroud of cold clouds. The average cloud temperature ranges from about -240 degrees to -330 degrees F.

What will happen when we replace oxygen with nitrogen in our life while breathing and what will happen if it was in our cells? (Theory no one has ever thought)

Answers

The short answer is that you inhale oxygen because you need oxygen for some biological processes. A fairly important one is the production of ATP, the energy all of our cells use. In the process, electrons are used and oxygen has a high affinity for electrons.

A bond will form so the outermost energy level of an atom will have _____.
A. room for more electrons
B. exactly four electrons
C. the maximum number of electrons
D. the fewest electrons possible

Answers

Answer:

D

Explanation:

the fewest electrons possible (looking for brainliest)

Answer:d

Explanation:

ayudaaaa por favor

¿Estás de acuerdo con que las industrias petroleas exploten petróleo en zonas de reservas naturales?

Answers

Answer:

si estoy de acuerdo cien por ciento

SUPER EASY. just check if i'm right or not. WILL GIVE BRAINLIEST

Answers

Answer:

what is the question

Explanation:

Answer:

Um what do u want us to check?

Explanation:

An octopus swims 7 km at a speed of 3 km/hr.How long does it take in hours and minutes?

Answers

Answer:

your question is not correct

PLEASE HELPP!!
True or False: Non-metal is a kind of metal.

Answers

Answer:

Explanation:

FALSE.

I hope this helps <333

:3

What MUST always be true of the masses of the red and blue liquids?
А.
They will NEVER equal the mass of the purple liquid to the right of the arrow.
B.
They will ALWAYS equal the mass of the purple liquid to the right of the arrow.

Answers

They will ALWAYS equal the mass of the purple liquid, so answer is B

the temperature at which a liquid becomes a gas is called the

Answers

Boiling point is the term for this I believe. I believe the boiling point of water is 212 degrees Fahrenheit, which is 100 degrees Celsius.

Help me pls I will mark you as brain

Answers

I’m pretty sure it’s the first one

Question 2 Which models of the atom from task 1 are not supported by Rutherford’s experimental evidence? For each of these models, explain the experimental results that the model would predict.

Answers

Answer:

Sorry I don't know.

Explanation:

I'm only in middle school.

What direction would this plate move? (the plate is gray in color)

options:

from West to East


from East to West


from South to North


from North to South

Answers

Answer:

from south to north thats what it look like

Explanation:

why is it important to make measurements using a standard?

Answers

A standard unit of measurement is a quantifiable language that helps everyone understand the association of the object with the measurement. It is expressed in inches, feet, and pounds, in the United States, and centimeters, meters, and kilograms in the metric system.

label the particles, charges, & mass for Elements: 6, 8 & 10?

Answers

Answer:

charges, & mass

Explanation:

What is the health danger of breathing carbon monoxide

Answers

Answer:

Well, it´s dangerous because it displaces oxygen in the blood and deprives the heart, the brain and other vital organs.

Explanation:

What i mean by that is that breathing carbon monoxide reduces the amount of oxygen that can be transported in the blood stream to critical organs like the heart and brain. It can also causes E.g. dizziness, confusion, unconsciousness and even death.

I hope this answered yor question, if i did misundertood the question do tell me and i will try my best to explain it. Have a nice day!! :)

Other Questions
Why is reduced precipitation, rather than drought, the leading cause of limited water availability?A) Reduced precipitation is the cause of drought.B) Drought only impacts the supplies of groundwater.C) Water availability depends upon drought conditions.D) Drought only affects areas with vegetation.E) Precipitation limits the amount of water in many environments. Selena is a freelance graphic artist who charges $65 per hour for her services. A client paid her $195 for her last project. The equation below represents this situation.65h = 195For how many hours did Selena work on that project? Explaining Which of these photographs best captures your idea of what WorldWar I combat was really like? Explain. help me please!!! no links 10 points What is one feature that the U.S. Constitution and most state constitutions have in common? (4 points)Group of answer choices:A They both guarantee individual freedoms.B They both establish the rates people pay in taxes.C They both require a balanced budget.D They both establish funding for schools. Escoge los hispanohablantes que son famosos por los deportes. (Choose ALL that apply.)Diego RiveraRafael NadalFrida KahloPablo NerudaRoberto Clemente 1. Give one example of professional behavior in a salon and how a cosmetologist coulddemonstrate it." A student has a test tube that contains 50 mL of water. She wants to add a substance to the water that will cause the test tube to become hot to the touch. Which of the following would be best for her to add to the water? A. a substance that produces a gas when it reacts with water B. a substance that does not react with water C. a substance that releases heat when it reacts with water D. a substance that absorbs heat when it reacts with water What valuable information was gained from Mendel's dihybrid crosses?Select all that apply.1. Not all traits are controlled by genes. In most plants, genes only determine traits that affectflower color.2. Statistical and probability methods can be used to determine how likely an offspring is to inheritcertain traits.3. Genes are inherited differently in plants than they are in animals.4. Inheritance of one trait does not affect inheritance of another. Select the statement which best describes the characteristics a baby raccoon will inherit from a parent. (2 points)zennie / iStock 2018A striped tail, black fur across its eyes, and sharp clawsBrown fur and the ability to search for food in groupsFour legs and the need to hibernate when the weather is coldWebbed feet with claws and fur, and white fur on its eyes HELP ASAP ASAP!! NO LINKS PLEASEEEE OR U WILL BE REPORTED, I NEED AN ANSWER WITH EXPLANATION AND WORK SHOWN OR EXPLAINED, WILL GIVE BRAINIEST!! What will be the change of velocity of a 50kg object if a force of 2,000Nis applied to it for 0.010 seconds? HURRY PLEASE IM NEED HELP!!!!!! log(x+4)=logX + log4 Use the reverse order of operation to solve this problem. 2m = 1 30 POINTS!!!!! I WILL GIVE BRAINLIEST!!!!!! What is the measure of angle PQR? What is the Florida state lizard (dont search) just guess what type of climate would you find in east asia PSYCHOLOGY Intimacy, passion, and commitment are all important components of __________. A. physical attraction B. romantic love C. reciprocal liking D. arranged marriages ANSWER: B Which excerpt from Weve Got a Job best expresses Audreys bravery?As the daughter of activists, Audrey learned and lived many lessons about racism and witnessed the battles her parents and their friends fought.Each afternoon, when Audrey came home from Center Street Elementary School, she did her chores, played with other kids in the neighborhoodAudrey knew that this attack against civil rights activists was far from unique. Many black people called their hometown Bombingham.Audrey was the youngest of three to four thousand black children who marched, protested, sang, and prayed their way to jail. Steam Workshop Downloader