List of top Physics Questions on Thermodynamics and Work Done

The internal energy of a monoatomic gas is 3nRT. One mole of helium... heated slowly by supplying 126 J heat... piston will move ___ cm.
10 mole of oxygen is heated at constant volume from 30 \(^{\circ}\)C to 40 \(^{\circ}\)C. The change in the internal energy of the gas is_____ cal.
(The molecular specific heat of oxygen at constant pressure, \(C_p=7\) cal/mol \(^{\circ}\)C and \(R=2\) cal/mol \(^{\circ}\)C.)
An air bubble of volume 2.9 cm$^3$ rises from the bottom of a swimming pool of 5 m deep. At the bottom of the pool water temperature is 17 $^\circ$C. The volume of the bubble when it reaches the surface, where the water temperature is 27 $^\circ$C, is ___ cm$^3$.
One mole of ideal diatomic gas expands... final temperature will be (close to) ___ $^\circ$C.

Using the given P-V diagram, the work done by an ideal gas along the path ABCD is: 

Match the List-I with List-II


Choose the correct answer from the options given below:

A gun fires a lead bullet of temperature 300 K into a wooden block. The bullet having melting temperature of 600 K penetrates into the block and melts down. If the total heat required for the process is 625 J, then the mass of the bullet is               grams. Given Data: Latent heat of fusion of lead = \(2.5 \times 10^4 \, \text{J kg}^{-1}\) and specific heat capacity of lead = 125 J kg\(^{-1}\) K\(^{-1}\).

For a diatomic gas, if \( \gamma_1 = \frac{C_P}{C_V} \) for rigid molecules and \( \gamma_2 = \frac{C_P}{C_V} \) for another diatomic molecules, but also having vibrational modes. Then, which one of the following options is correct? (where \( C_P \) and \( C_V \) are specific heats of the gas at constant pressure and volume)
Find out magnitude of work done in the process ABCD (in kJ).

An ideal gas initially at 0°C temperature, is compressed suddenly to one fourth of its volume. If the ratio of specific heat at constant pressure to that at constant volume is \( \frac{3}{2} \), the change in temperature due to the thermodynamics process is         K.