(a(i).1)[1]
State, for a system, what +q means.
(a(i).2)[1]
State, for a system, what +w means.
(a(ii))[1]
State what a negative value of $\Delta U$ represents.
(a(i)1)[1]
State, for a system, what +q means.
(a(i)2)[1]
State, for a system, what +w means.
(b(i))[2]
State and explain the overall change in internal energy of the gas for one complete cycle ABCA.
(b(ii))[2]
Calculate the external work done on the gas as it expands from point C to point A.
(b(iii))[4]
Complete Fig. 2.2 to show the changes from: point A to point B; point B to point C; point C to point A.