Assuming constant pressure, rank these reactions from most energy released by the system to most energy absorbed by the system, based on the following descriptions:. A: Surroundings get colder and the system decreases in volume.
B: Surroundings get hotter and the system expands in volume.
C: Surroundings get hotter and the system decreases in volume.
D: Surroundings get hotter and the system does not change in volume.

C: The surroundings heat up and the system decreases in volume.

D: The surroundings heat up and the system does not change volume.

B: The surroundings heat up and the system expands in volume.

A: The surroundings get cold and the system decreases in volume.

Explanation:

The most exothermic reactions are those that release heat, that is to say, they give up the heat as it cools and the surroundings heat up.

As for endothermics, that is, those that absorb or capture the heat of the medium, they are variables that cool the environment that surrounds them and increase their internal temperature

answer; i believe that the correct answer is (a) potassium(k)