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qUESTIONS

A container with rigid walls is covered with perfectly insulating material. The container is divided into two parts by a partition. One part contains a gas while the other is fully evacuated (vacuum). The partition is suddenly removed. The gas rushes to fill the entire volume and comes to equilibrium after a little time. If the gas is not ideal

Refer to the Carnot cycle of an ideal gas shown in the figure. Let Wa→b, ,Wb→c ,Wc→d and Wd→a represent the work done by the system during the processes a→b, b→c, c→d, and d→ a respectively. Consider the following relations

A sample of ideal monoatomic gas is taken round the cycle ABCA as shown in the figure. The work done during the cycle is

A system is taken from state a to state c by two paths adc and abc as shown in the figure. The internal energy at a is Ua = 10J. Along the path adc the amount of heat absorbed δQ₁ = 50J and the work obtained & δW₁ = 20 J whereas along the path abc the heat absorbed δQ2 = 36J. The amount of work along the path abc is

A sample of 0.1g of water at 100°C and normal pressure (1.013×10^5 Nm^-2) requires 54 cal of heat energy to convert to steam at 100°C. If the volume of the steam produced is 167.1cc, the change in internal energy of the sample, is

Pressure-temperature relationship for an ideal gas undergoing adiabatic change is (γ = Cp/CV)

During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its absolute temperature. The ratio Cp / Cv for the gas is

A particle is moving with a constant speed along a straight-line path. A force is not required to

When a bus suddenly takes a turn, the passengers are thrown outwards because of

A metre scale is moving with uniform velocity. This implies

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