Thermodynamics ...

The temperature of a hypothetical gas increases √2 to times when compressed adiabatically to half the volume. Its equation can be written as

Two Carnot engines A and B are operated in succession. The first one, A receives heat from a source at T₁ = 800 K and rejects to sink at T₂K. The second engine B receives heat rejected by the first engine and rejects to another sink at T₃ = 300 K. If the work outputs of two engines are equal, then the value of T₂ is

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

When an ideal gas (γ = 5/3) is heated under constant pressure, then what percentage of given heat energy will be utilised in doing external work

Which one of the following gases possesses the largest internal energy?

Two samples A and B of a gas initially at the same pressure and temperature are compressed from volume V to V/2 (A isothermally and adiabatically). The final pressure of A is

Initial pressure and volume of a gas are P and V respectively. First it is expanded isothermally to volume 4V and then compressed adiabatically to volume V. The final pressure of gas will be (given γ = 3/2)

A thermally insulated rigid container contains an ideal gas heated by a filament of resistance 100 Ω through a current of 1 A for 5 mm, then change in internal energy is

An engineer claims to have made an engine delivering 10 kW power with fuel consumption of 1 g/s. The calorific value of the fuel is 2 kcal/g. Is the claim of the engineer

An ideal gas expands in such a manner that its pressure and volume can be related by equation PV² = Constant. During this process, the gas is