Question

what is endothermic reaction?​

Answer 1

Explanation:

An endothermic process is any process with an increase in the enthalpy H (or internal energy U) of the system. In such a process, a closed system usually absorbs thermal energy from its surroundings, which is heat transfer into the system.

Answer 2

Explanation:

An endothermic process is any process with an increase in the enthalpy H of the system.