...he... 2- A diver on Saturn's moon Titan is 50 m below the surface of a lake of liquid
methane.
(a) what is the increase in pressure on him due to his depth in the methane? The
density of liquid is 420 kg/m3. the gravitational field on Titan is 1.4 N/kg.
[2]
(6) we are told that the pressure of the atmosphere on Titan is 1600 mbar. What is
the total pressure on the diver (in kPa)
[2]​

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.