# How much heat is needed to vaporize 33.3 grams of ethyl alcohol at its boiling point of 78.0°C? The latent heat of vaporization of ethyl alcohol is 857 J/g. Round your answer to three significant figures.

2 answers

###### Question:

How much heat is needed to vaporize 33.3 grams of ethyl alcohol at its boiling point of 78.0°C? The latent heat of vaporization of ethyl alcohol is 857 J/g. Round your answer to three significant figures.

## Answers

Answer:28,538 JExplanation:The heat needed to vaporize the ethyl alcohol is given by:[tex]Q=m\lambda_v[/tex]wherem = 33.3 g is the mass of the ethyl alcohol[tex]\lambda_v=857 J/g[/tex] is the latent heat of vaporization of alcoholSince the alcohol is already at its boiling point (78 degrees), we don't need any other heat to bring it at this temperature. Therefore, we can simply calculate the heat needed by putting the numbers inside the formula:[tex]Q=(33.3 g)(857 J/g)=28,538 J[/tex]

Answer:28,500 JoulesExplanation:Q=mLm = 33.3 g (mass of the ethyl alcohol)L = 857 J/g (latent heat of vaporization of ethyl acohol)Q = 33.3(857)Q = 28538.1 JoulesRound it to 3 significant figures.

#### Similar Solved Questions

2 answers

### 2. True or False: According to financial experts, a renter should allow no more than 30% of their gross income for rent. Anciner:

2. True or False: According to financial experts, a renter should allow no more than 30%
of their gross income for rent.
Anciner:...

2 answers

### Healthy manpower is the foundation of development of the nation

Healthy manpower is the foundation of development of the nation...

2 answers

### Which set of numbers includes only integers? Group of answer choices 12,23,67,0 −3,−2,2,3 −6,−4,−2,−12 −5,−314,1,18

Which set of numbers includes only integers?
Group of answer choices
12,23,67,0
−3,−2,2,3
−6,−4,−2,−12
−5,−314,1,18...

1 answer

### 12) Which major detail from paragraph four supports a characteristic that most superfoods share? A) Pomegranates have a deep purple hue. B) The inside of a kiwi is bright green. C) Dark red beets are highly nutritious. D) They often are rich and vibrant in color.

12) Which major detail from paragraph four supports a characteristic that
most superfoods share?
A) Pomegranates have a deep purple hue.
B)
The inside of a kiwi is bright green.
C)
Dark red beets are highly nutritious.
D)
They often are rich and vibrant in color....

1 answer

### How many milliliters of water must be added 100.0ml of 4.50MHBr to make a solution that is 0.250MHCl

How many milliliters of water must be added 100.0ml of 4.50MHBr to make a solution that is 0.250MHCl...

1 answer

### Mrs. Manzo's class has 20 girls and 25 boys. She wants to put them into identical groups with the same number of boys and girls in each group. What is the greatest number of groups she can make? *

Mrs. Manzo's class has 20 girls and 25 boys. She wants to put them into
identical groups with the same number of boys and girls in each group.
What is the greatest number of groups she can make? *...

1 answer

### . The 2 angles of the Isosceles Trapezium are 1050 and 750, find the other 2 angle

. The 2 angles of the Isosceles Trapezium are 1050 and 750, find the other 2 angle...

1 answer

### Ken went to a country fair and spent $5 on admission, %6.50 on games, and $7.21 on food. If he has $30 before he went to the fair, how much money does he have left?

Ken went to a country fair and spent $5 on admission, %6.50 on games, and $7.21 on food. If he has $30 before he went to the fair, how much money does he have left?...

2 answers

### 1. Which of the following does NOT have Artificial Intelligence?Siri/Alexa driverless carsWireless SpeakersFace Recognition

1. Which of the following does NOT have Artificial Intelligence?Siri/Alexa driverless carsWireless SpeakersFace Recognition...

1 answer

### Which of the following structures will not be found in the nucleus of a cell? A. DNA B. Nucleolus C. Lysosome D. Centriole

Which of the following structures will not be found in the nucleus of a cell?
A. DNA
B. Nucleolus
C. Lysosome
D. Centriole...

2 answers

### Most resources are nonrenewable, and wants and needs are unlimited. This is an example of production scarcity labor devaluation

Most resources are nonrenewable, and wants and needs are unlimited. This is an example of production scarcity labor devaluation...

1 answer

### What is 20/7 as a mixed number in simplest form?

What is 20/7 as a mixed number in simplest form?...

1 answer

### . 1 Find f for the function f. f(x) = 3x² + 3, x > 0 And find the domain

. 1
Find f
for the function f.
f(x) = 3x² + 3, x > 0
And find the domain...

2 answers

### Read the excerpt from Joseph Conrad’s Heart of Darkness. And the intimate profundity of that look he gave me when he received his hurt remains to this day in my memory—like a claim of distant kinship affirmed in a supreme moment. Read the excerpt from "An Image of Africa: Racism in Conrad’s Heart of Darkness.” It is important to note that Conrad, careful as ever with his words, is concerned not so much about "distant kinship" as about someone laying a claim on it. The black man lays a claim on t

Read the excerpt from Joseph Conrad’s Heart of Darkness.
And the intimate profundity of that look he gave me when he received his hurt remains to this day in my memory—like a claim of distant kinship affirmed in a supreme moment.
Read the excerpt from "An Image of Africa: Racism in Conrad’s He...

1 answer

### Will give brainlist please don’t take my points Select the correct sentence. At the White House reception, ex-President Carter gave the greeting. At the White House reception, exPresident Carter gave the greeting.

Will give brainlist please don’t take my points
Select the correct sentence.
At the White House reception, ex-President Carter gave the greeting.
At the White House reception, exPresident Carter gave the greeting....

1 answer

### NO ONE IS HELPING ME PLEASE IM FINNA CRY The first term in an arithmetic sequence is 5. The third term in the sequence is -1. The tenth term in the sequence is -22. Which of the following functions can be used to find the nth term of the arithmetic sequence? A. f(n) = -n B. f(n) = n + 4 C. f(n) = -3n + 8 D. f(n) = 0.5(n+5) + 2

NO ONE IS HELPING ME PLEASE IM FINNA CRY
The first term in an arithmetic sequence is 5. The third term in the sequence is -1. The tenth term in the sequence is -22.
Which of the following functions can be used to find the nth term of the arithmetic sequence?
A.
f(n) = -n
B.
f(n) = n + 4
C.
f(n...

2 answers

### A circle has an area of 256pi. What is the diameter of the circle?

A circle has an area of 256pi. What is the diameter of the circle?...