EVERYDAY SCIENCE

Detailed explanation-1: -Fusion, vaporization, and sublimation are endothermic processes, whereas freezing, condensation, and deposition are exothermic processes.

Detailed explanation-2: -Energy and Phase Changes During an exothermic change, the system releases energy to its surroundings. Freezing is an example of an exothermic change.

Detailed explanation-3: -Answer and Explanation: An exothermic phase change is one in which the sample loses energy (heat) to the surroundings. Option a (condensation) is the correct answer because condensation is the phase change from gas to liquid.

Detailed explanation-4: -Final answer: Dilution of an acid and Reaction of water with Quicklime are exothermic processes.

Detailed explanation-5: -Final Answer: Melting is an endothermic process because when heat absorbs then the physical state will change from solid to liquid.