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qUESTIONS

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

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 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

Find the change in the entropy in the following process 100 g of ice at 0°C melts when dropped in a bucket of water at 50°C (Assume temperature of water does not change)

When 1 kg of ice at 0°C melts to water at 0°C, the resulting change in its entropy, taking latent heat of ice to be 80 cal/°C is

The change in the entropy of a 1 mole of an ideal gas which went through an isothermal process from an initial state (P1, V1, T) to the final state (P2, V2, T) is equal to

In a cyclic process, work done by the system is?

Which of the following processes is reversible?

A Carnot engine absorbs an amount Q of heat from a reservoir at an absolute temperature T and rejects heat to a sink at a temperature of T/3. The amount of heat rejected is

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