Question

which of the following is an endothermic process​

Answer 1

Answer:

D - Sublimation of dry ice and evaporation of water both are endothermic processes. These processes pull heat (energy) from their surroundings to change from one state to another. ... Processes of dilution of sulphuric acid and condensation of water vapours produce a large amount of heat.

Answer 2

Answer:

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.