Question

lesson 24: systems and energy
which of the following processes occur when the system releases energy to its surroundings? (select all that apply)
□ solid turns into gas
□ liquid turns into gas
□ liquid to solid
□ gas turns into liquid

Explanation:

When a system releases energy to its surroundings, it is an exothermic process.

• Solid turning into gas (sublimation) and liquid turning into gas (vaporization) are endothermic processes as they require energy input.
• Liquid to solid (freezing) and gas turning into liquid (condensation) are exothermic processes as they release energy.

Answer:

liquid to solid, Gas turns into liquid