- #1

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I fouind out the change in U, which is -960. I'm just not sure how to calculate Q. Any help would be greatly appreciated.

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- Thread starter ~angel~
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- #1

- 150

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I fouind out the change in U, which is -960. I'm just not sure how to calculate Q. Any help would be greatly appreciated.

- #2

OlderDan

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~angel~ said:

I fouind out the change in U, which is -960. I'm just not sure how to calculate Q. Any help would be greatly appreciated.

I don't understand the question. Why isn't Q the heat absorbed that you were given?

- #3

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The question is:

What is the final temperature T_final of the gas?

Use R = 8.3145 J/mol/K for the ideal gas constant.

- #4

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Use [itex]Q = \Delta U + W[/itex].

- #5

OlderDan

Science Advisor

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~angel~ said:

The question is:

What is the final temperature T_final of the gas?

Use R = 8.3145 J/mol/K for the ideal gas constant.

You should be able to calculate the initial internal energy of the gas, given that you know the termperature, how much gas you have, and that it is ideal monatomic. You know how much internal energy was lost in the process, so you know the final internal energy, from which you can calculate the final temperature. Look for the discussion in your text or notes about how internal energy in an ideal gas is distributed.

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