Obtain work done at constant pressure.

Explain work done by a constant force .

Three moles of an ideal gas (C_p=7/2R) at pressure, P_A and temperature T_A is isothermally expanded to twice its initial volume. It is then compressed at constant pressure to its original volume. Finally gas is compressed at constant volume to its original pressure P_A . (a) Sketch P-V and P-T diagrams for the complete process. (b) Calculate the net work done by the gas, and net heat supplied to the gas during the complete process.

(a) Define work done by a constant force. Write its SI unit and define this unit. (b) A 3000kg truck at a speed of 72kmh^(-1) stops after covering some distance. The force applied by brakes is 2400 N. Compute the distance covered and work done by this force.

Obtain the form of thermodynamics at constant pressure.

One mole of an ideal gas is heated at constant pressure. If an 100 Joule heat energy supplied to the gas, then work done by the gas will be …….. (gamma=1.4)

If a gas is heated at constant pressure, then what percentage of total heat supplied is used up of external work ? (r=4/3)

One mole of an ideal gas at an initial temperature of TK does 6R Joule of work adiabatically. If the ratio of specific heat of this gas at constant pressure and at constant volume is 5/3 , the final temperature of gas will be ____

One mole of an ideal gas at an initial temperature of TK does 6R joule of work adiabatically. If the ratio of specific heats of this gas at constant pressure and at constant volume is 5//3 , the final temperature of the gas will be