208k views
2 votes
Which of the following is true for some, but not all, spontaneous processes?

a) Increase in entropy
b) Decrease in energy
c) Absorption of heat
d) Reversible reaction

1 Answer

3 votes

Final answer:

The correct answer is a) Increase in entropy. Entropy is a measure of the disorder or randomness in a system, and in spontaneous processes, the total entropy of a system either increases or remains constant.

Step-by-step explanation:

The correct answer is a) Increase in entropy.

Entropy is a measure of the disorder or randomness in a system. In spontaneous processes, the total entropy of a system either increases or remains constant, but it never decreases. However, not all spontaneous processes have a decrease in energy, absorption of heat, or are reversible reactions.

For example, when a gas expands from a small volume to fill a larger volume, the randomness or disorder of the system increases, leading to an increase in entropy. This is a spontaneous process, as it occurs without any external intervention and is not reversible.

User Yacola
by
7.6k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.