Thermodynamics

Question 1

First law of thermodynamics (Work done on gas and work done by gas)

Answer 1

On gas
U=q+W

By gas
U=q-W

U internal energy
q heat energy
W work done

Question 2

Define internal energy

Answer 2

Sum of random distribution of kinetic and potential energies within a system of molecules

Question 3

Work done by gas equation

Answer 3

W=P * change in V

Question 4

Area under PV curve = ?

Answer 4

Work done

Question 5

First law of thermodynamics for Adiabatic process

Answer 5

q=0
So U=W only