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qUESTIONS

First law of thermodynamics is based on

One mole of an ideal gas having initial volume V, pressure 2p and temperature T undergoes a cyclic process ABCDA as shown below. The network done in the complete cycle is

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

Which of the following statements is true

In the given figure, a certain mass of gas traces three paths 1, 2, 3 from state A to state B. If work done by the gas along three paths are W₁, W₂, W3 respectively, then

A thermodynamical system goes from state (i) (p, V) to (2 p, V) and (ii) (p, I) to (p, 21). Work done in the two cases is

An ideal gas is taken from state A to state B following three different paths as shown in p-V diagram. Which one of the following is true

In the certain process, 400 cal of heat is supplied to a system and at the same time 105 J of mechanical work was done on the system. The increase in its internal energy is

1 cm³ of water at its boiling point absorbs 540 cal of heat to become steam with a volume of 1671 cm³. If the atmospheric pressure is 1.013 x 105 N/m² and the mechanical equivalent of heat is 4.19 Jcal-¹, the energy spend in this process in overcoming intermolecular forces is

When an ideal monoatomic gas is heated at constant pressure, fraction of heat energy supplied which increases the internal energy of gas is

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