A piece of copper, of mass 120g is heated in a enclosure to a temperature of 125°c. It's den taken out of the enclosure and held in air for half a minutes & dropped carefully into a copper calorimeter of mass 100g containing 20g of H20 at 20°c. The temperature of the water rising to 25°c. calculate the rate at which heat is being 100t 46m the piece of cu, won it's held in air (side of H2o =4200 Jkg-1k-1, STC of cmu =4000 jkg-1k-1​

well i don't know

Explanation:

freezing

deposition

condensation

explanation;

melting also called fusion is the process where solid becomes liquid, sublimation is the process where solid becomes gaseous without first changing to liquid, deposition involves change from gaseous to solid state, freezing involves change from liquid to solid, boiling or evaporation involves change of liquid to gaseous state, while condensation is the change from gaseous state to liquid state.

endothermic reactions involves absorption of heat from the surroundings or the environment while exothermic reactions involves loss of heat energy to the surroundings.

in this case, sublimation, evaporation and melting are endothermic reactions (gain energy from the environment) while, freezing, deposition and condensation are exothermic (loss of energy to the surroundings) reactions.

your answer would be fusion