Question

true or false: the standard molar entropy of a pure element in its standard state is zero at 25°c. true false

Explanation:

The standard molar entropy of a pure element in its standard state is not zero at 25°C. The standard enthalpy of formation of a pure element in its standard state is zero, but entropy (a measure of disorder) for any substance above absolute zero (0 K) is positive. At 25°C (298 K), which is above 0 K, the element has some degree of disorder, so its standard molar entropy is greater than zero.

Answer:

False