Derive an expression for capacity of a parallel plate condenser filled with dielectric

Derive an expression for capacitance of a parallel plate capacitor without a dielectric.

Derive an expression for capacitance of a parallel plate capacitor without a dielectric slab between the plates.

Derive an expression for compton shift .

State the expression for capacity of a parallel plate condenser with meaning of each symbol used . How capacity of parallel plate condenser can be increased ?

Derive an expression for maximum work.

Derive an expression for thin prism.

Derive an expression for potential energy.

Derive expression for enthalpy change.

Derive an expression for efficiency of Carnot cycle.

Derive an expression for work done for a system.