Question

which of the statements describes heat? the energy that can only be released by chemical reactions the amount of energy needed to raise the temperature of 1 g of water by 1 °c the energy caused by molecules moving at high speeds the kinetic energy generated by random movements of molecules or atoms

Explanation:

Heat is a form of energy associated with the random motion of molecules or atoms. It is not limited to energy from chemical reactions only. The amount of energy needed to raise the temperature of 1 g of water by 1 °C is the definition of a calorie. Energy from high - speed molecular motion is more related to the concept of kinetic energy in a more general sense, but heat is specifically the kinetic energy from random molecular/atomic movements.

Answer:

the kinetic energy generated by random movements of molecules or atoms