Question

3. A sample of an ideal gas is taken through a closed cycle presented by P-V diagram. The process 1-2 is perfectly isothermal. Which of the following is true about the change in internal energy and heat added to the gas during the process 3-1? a. ? U = 0 Q > 0 b. ? U > 0 Q > 0 c. ? U < 0 Q < 0 d. ? U = 0 Q = 0 e. ? U = 0 Q < 0

          3. A sample of an ideal gas is taken through a closed cycle presented by P-V diagram. The process 1-2 is perfectly isothermal. Which of the following is true about the change in internal energy and heat added to the gas during the process 3-1?

a. ? U = 0 Q > 0
b. ? U > 0 Q > 0
c. ? U < 0 Q < 0
d. ? U = 0 Q = 0
e. ? U = 0 Q < 0

3. A sample of an ideal gas is taken through a closed cycle presented by P-V diagram. The process 1-2 is perfectly isothermal. Which of the following is true about the change in internal energy and heat added to the gas during the process 3-1?

a. ? U = 0 Q > 0
b. ? U > 0 Q > 0
c. ? U < 0 Q < 0
d. ? U = 0 Q = 0
e. ? U = 0 Q < 0

Added by Lydia H.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Raman S

02/06/2022

Step 1

- The internal energy (U) of an ideal gas depends only on its temperature. If the temperature of the gas does not change, then the change in internal energy (∆U) is zero. - For an isothermal process (constant temperature), the work done on or by the gas is exactly Show more…

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A sample of an ideal gas is taken through a closed cycle presented by P-V diagram. The process 1-2 is perfectly isothermal. Which of the following is true about the change in internal energy and heat added to the gas during the process 3-1? a. Δ U = 0 Q > 0 b. Δ U > 0 Q > 0 c. Δ U < 0 Q < 0 d. Δ U = 0 Q = 0 e. Δ U = 0 Q < 0