Entropy and the Second Law Video Lessons

Concept

# Problem: Quantity A of an ideal gas is at absolute temperature T, and a second quantity B of the same gas is at absolute temperature 2T. Heat is added to each gas, and both gases are allowed to expand isothermally.If both gases were initially at the same absolute temperature, would they still undergo the same entropy change?A. No, gas A would undergo the greater entropy change.B. No, gas B would undergo the greater entropy change.C. Yes, both gases would have the same entropy.

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###### Problem Details

Quantity A of an ideal gas is at absolute temperature T, and a second quantity B of the same gas is at absolute temperature 2T. Heat is added to each gas, and both gases are allowed to expand isothermally.

If both gases were initially at the same absolute temperature, would they still undergo the same entropy change?

A. No, gas A would undergo the greater entropy change.

B. No, gas B would undergo the greater entropy change.

C. Yes, both gases would have the same entropy.