Someone help me with this please and thank you

What is the relationship between the wavelength of a wave and it's energy?

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.