1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
san4es73 [151]
2 years ago
13

How much heat is released when 12. 0 grams of helium gas condense at 2. 17 K? The latent heat of vaporization of helium is 21 J/

g. â€""250 J â€""26 J 26 J 250 J.
Mathematics
1 answer:
aleksandr82 [10.1K]2 years ago
7 0

The amount of heat released when 12.0g of helium gas condense at 2.17 K is; -250 J

The latent heat of vapourization of a substance is the amount of heat required to effect a change of state of the substance from liquid to gaseous state.

However, since we are required to determine heat released when the helium gas condenses.

The heat of condensation per gram is; -21 J/g.

Therefore, for 12grams, the heat of condensation released is; 12 × -21 = -252 J.

Approximately, -250J.

Read more on latent heat:

brainly.com/question/19863536

You might be interested in
heather has divided $6300 between two invesments, one paying 9%, the other paying 4%. If the return on her investment is $372, h
Ganezh [65]
Assuming that the two investments are  X & Y
X + Y = 6300
X = 6300 - Y                                       (1)

9/100X + 4/100 Y = 372                       (2)
replacing X from (1) into (2)
9/100(6300-Y) + 4/100 Y = 372
567 - 9/100Y +4/100Y = 372
(-9+4)/100Y = 372 - 567
5/100Y = -195
Y = 100*195/5 = 3900
From (1) we can get X
X = 6300 - 3900 = 2400

I hope this is helpful 



6 0
3 years ago
Suppose that each of 935 smokers received a nicotine patch, which delivers nicotine to the bloodstream but at a much slower rate
nika2105 [10]

Answer:

26.2% of smokers,when given this treatment, would refrain from smoking for at least 6 months.

Step-by-step explanation:

In this problem, we have that:

935 smokers received the treatment(nicotine patch).

After 6 months, 245 of them were not smoking.

Assuming it is reasonable to regard this sample as representative of all smokers, estimate the percentage of all smokers who, when given this treatment, would refrain from smoking for at least 6 months.

This percentage is 245/935 = 0.2620.

26% of smokers,when given this treatment, would refrain from smoking for at least 6 months.

7 0
3 years ago
Solve for e: (-7) e/3+14
baherus [9]
If the question is supposed to be -7= \frac{e}{3}+14
   Subtract 14 from both sides to get -21=  \frac{e}{3}

Now multiply both sides by 3 to get 3(-21)=-63=e
4 0
3 years ago
Read 2 more answers
16. Which graph represents the solution to the following system of inequalities?
Tanzania [10]

Answer:

D

Step-by-step explanation:

7 0
3 years ago
A computer store is having a sale, with 15 % off all computer games. The game usually costs $220. How much does the computer gam
Harman [31]

Answer:

33 dollars.

Step-by-step explanation:

220 times 15/100=165/5=33

hopefully this helps!:)

please give me brainliest because I have never gor it before.

7 0
3 years ago
Other questions:
  • How do I do this, I am very VERY confused I need a lot of help please someone!?!?
    15·1 answer
  • Mark ran 875 miles this year in the track club.Mark ran in 52 track meets and ran the same number of miles in each.How many mile
    9·1 answer
  • Jose's vase can hold up to 2,419 milliliters of water. He poured 1 liter 299 milliliters of water into the empty vase. Then he a
    13·1 answer
  • Multiply <br> (5x-1)(6x^2+3x+7)<br><br> SHOW WORK
    14·2 answers
  • -x+10=5x-12 the answer
    6·2 answers
  • If the perimeter is 84cm and the length is 32 ft what is the width
    12·2 answers
  • Margie pays $9.43, which includes 15%
    6·1 answer
  • I don't know I try my best I'm not good at this
    15·1 answer
  • The fact family model represents 6 + 5 = 11.
    7·1 answer
  • PLS HELP I HAVE LIMITED TIME PLEASE GUYS
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!