A system is changed from state `A` to state `B` by one path and from `B` to `A` by another path. If `DeltaE_(1)` and `DeltaE_(2)` are the corresponding changes in internal energy, then

In a change from state A to state B

A system is changed from state A to state B by one path and from B to A by another path. If U and U_2 are the corresponding change in internal energy, then:

Matter changes from one state to another by increasing -

Let Delta U_(1) and Delta U_(2) be the changes in internal energy of an ideal gas in the processes A and B then

A system can go from state A to state B in two different processes 1 and 2. If the change in internal energy in two cases are Delta U_(1) and Delta U_(2) , respectively, then

An ideal gas is taken from state 1 to state 2 through optional path A, B, C and D as shown in the PV diagram. Let Q, W and U represent the heat supplied, work done and change in internal energy of the gas respectively. Then,

In the figure an ideal gas changes is state from state A to state C by two paths ABC and AC. (a) Find the path along which the work done is least. (b) The internal energy of the gas at A is 10 J and the amount of heat supplied to change its state to C through the path AC is 200 J. Calculate the internal energy at C. (c) The internal energy of the gas at state B is 20 J. Fid the amount of the heat supplied to gas to go from A to B.