A system is taken to its final state from initial state in hypothetical paths as shown in the figure. Calculate the work done in each case.

A system changes from the state ( P_1,V_1 ) to ( P_2,V_2 ) as shown in the figure, what is the work done by the system?

A given mass of a gas expands from state A to state B by three paths 1, 2 and 3 as shown in the figure. If W_1 , W_2 and W_3 respectively are the work done by the gas along the three paths, then. br>

A gas undergoes a change of state during which 100 J of heat is supplied to it does 20 J of work. The system is brought back to its original state through a process during which 20 J heat is released by the gas. The work done by the gas in the second processes.

A system goes from P to Q by two different paths in the P.V. diagram as shown in figure. Heat given to the system in path 1 is 1000 J . The work done by the system along path 1 is more than path 2 by 100 J What is the heat exchanged by the system in path 2 ?

Two bodies of masses m and 2m, moving with initial velocities 50 m//s in the + x direction and 40 m//s in the -x direction respectively, undergo a head -on elastic collision. (i) Calculate their final velocities (ii) What is the ratio of the final to initial kinetic energies for the body of mass m? (iii) Calculate the change in momentum of each body if m= 1kg (iv) What is the change in the momentum of the system?

An ideal gas undergoes isothermal process from initial state I to final state f. choose the correct alternatives.

Five identical resistors each of resistance 1Omega are initially arranged as shown in the figure by dark lines. If two similar resistances are added as shown by the dashed lines, then change in resistance in final and initial arrangement is