Suppose you do 100 J of work in compressing a gas. If 80 J of heat escapes in the process, what is the change in internal energy of the gas?
Solution 8E In this process the work was done against the pressure to decrease the volume of the gas. Hence the work was done on the gas and hence there will be no change in internal energy of the gas. Step 1 From the first law of thermodynamics we know that dQ = dU + dW Now, in this process, only energy that was supplied to the gas was the work done on the gas, hence we have dQ = dW Hence we have dU = 0 So, the change in the internal energy of the gas is zero.
Textbook: Conceptual Physics
Author: Paul G. Hewitt
The full step-by-step solution to problem: 8E from chapter: 18 was answered by , our top Physics solution expert on 04/03/17, 08:01AM. Conceptual Physics was written by and is associated to the ISBN: 9780321909107. The answer to “Suppose you do 100 J of work in compressing a gas. If 80 J of heat escapes in the process, what is the change in internal energy of the gas?” is broken down into a number of easy to follow steps, and 30 words. Since the solution to 8E from 18 chapter was answered, more than 344 students have viewed the full step-by-step answer. This full solution covers the following key subjects: gas, heat, Energy, escapes, change. This expansive textbook survival guide covers 45 chapters, and 4650 solutions. This textbook survival guide was created for the textbook: Conceptual Physics, edition: 12.