Question

In an endothermic reaction, the entropy change for the system is _______ and the entropy change for the surroundings is _______.

1) positive, positive
2) positive, negative
3) negative, positive
4) negative, negative

Answer 1

In an endothermic reaction, the entropy change for the system is positive, as it absorbs energy and becomes more disordered, while the entropy change for the surroundings is negative, as they lose heat and become more ordered.

Step-by-step explanation:

In an endothermic reaction, the entropy change for the system is positive because the system absorbs energy, increasing its disorder. In an endothermic reaction, the entropy change for the system is positive, as it absorbs energy and becomes more disordered, while the entropy change for the surroundings is negative, as they lose heat and become more ordered.

On the other hand, the entropy change for the surroundings is negative since the surroundings lose heat to the system, making them more ordered. Therefore, the correct answer is: the entropy change for the system is positive, and the entropy change for the surroundings is negative. Option 2 is correct.

In an endothermic reaction, the entropy change for the system is positive and the entropy change for the surroundings is negative.