List of top Physics Questions on Adiabatic Processes

In an adiabatic expansion, the temperature of one mole of an ideal monoatomic gas \((\gamma=\frac{5}{3})\) decreases from \(60\,\text{K}\) to \(50\,\text{K}\). The work done by the gas in the process is: (Take the universal gas constant as \(R=8.3\,\text{J mol}^{-1}\text{K}^{-1}\))

એક એડિયાબેટિક વિસ્તારણમાં, આદર્શ મોનોએટોમિક ગેસ (\( \gamma = \frac{5}{3} \))ના એક મોલનું તાપમાન 60 Kથી 50 K સુધી ઘટે છે. પ્રક્રિયામાં ગેસ દ્વારા કરેલું કાર્ય છે:

एक मोल एकपरमाणुक गैस में, एक मोल परमाणुक गैस \(\left(\gamma=\frac{5}{3}\right)\) का तापमान \(60K\) से बढ़ाकर \(50K\) किया जाता है। इस प्रक्रम में किया गया कार्य है : (सार्वत्रिक गैस नियतांक \(R=8.3\;J\,mol^{-1}K^{-1}\) है)

A vessel contains \(0.15\,\text{m}^3\) of a gas at pressure \(8\) bar and temperature \(140^\circ\text{C}\) with \(c_p=3R\) and \(c_v=2R\). It expands adiabatically till pressure falls to \(1\) bar. The work done during this process is ____ kJ. (R is gas constant)}

A cylinder with adiabatic walls is closed at both ends and is divided into two compartments by a frictionless adiabatic piston. Ideal gas is filled in both (left and right) the compartments at same \(P,V,T\). Heating is started from left side until pressure changes to \( \frac{27P}{8} \). If initial volume of each compartment was \(9\) litres then the final volume in right-hand side compartment is _____ litres. (for this ideal gas \(C_P/C_V=1.5\)).

Initial pressure and volume of a monoatomic ideal gas are \(P\) and \(V\). The change in internal energy of this gas in adiabatic expansion to volume \(V_{\text{final}} = 8V\) is ________ J.

The volume of an ideal gas (\( \gamma = 1.5 \)) is changed adiabatically from 5 litres to 4 litres. The ratio of initial pressure to final pressure is: