Question

when heat is released by the system, ________. a an equal amount of heat is absorbed by the surroundings b heat may either be absorbed or released by the surroundings c the temperature of the system increases d both a and c

Explanation:

According to the law of conservation of energy in thermodynamics, energy cannot be created or destroyed. When a system releases heat, an equal amount of heat must be absorbed by the surroundings to maintain energy - balance. Also, when heat is released by the system, its temperature generally decreases, not increases.

Answer:

A. an equal amount of heat is absorbed by the surroundings