Question

In an isothermal expansion of an ideal gas, the heat supplied to the gas is:

• A. entirely used to increase internal energy
• B. entirely used to do work
• C. partly used to do work and partly to increase internal energy
• D. none of the above

Hint:

For an ideal gas: \[ \Delta U = 0 \] whenever temperature remains constant. Hence, in isothermal expansion, all supplied heat is used to perform work.

Answer 1

The Correct Option is B