Question $2(1$ point$)$

When a sample of potassium nitrate is dissolved in water, the temperature of the water changes from $23\mathrm{.}5C$ to $20\mathrm{.}3C.$ Which statement describes this process?

This process is endothermic, so the surroundings get warmer.

None of the above options can be known for sure.

This process is endothermic, so the surroundings get cooler.

This process is exothermic, so the surroundings get warmer.

This process is exothermic, so the surroundings get cooler.