During a reversible isothermal expansion of an ideal gas
CHEMISTRY · Single correct · A Level · Chemistry · Thermodynamics · Thermodynamics
Problem
During a reversible isothermal expansion of an ideal gas, which one of the following best describes the change in entropy of the gas?
(a) It cannot be predicted without knowing pressure.
(b) It increases because the gas absorbs heat.
(c) It decreases because work is done by the gas.
(d) It remains zero because temperature is constant.