An ideal gas changes from a state defined by pressure p1 and volume V1 to a state defined by pressure p2 and volume V2. Which set of properties is independent of the path between the two states?

heat transfered to or from the gas

work and heat transfer involving the gas

work performed by or on the gas

change in internal energy of the gas

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.

think its the third option

the area between the graph and the t axis