Among the following the state function(s) is (are)
(i) Internal energy
(ii) Irreversible expansion work
(iii) Reversible expansion work
(iv) Molar enthalpy
For a spontaneous process, the correct statement(s) is (are)
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One mole of an ideal gas at 300 K is expanded isothermally from an initial volume of 1 litre to 10 litres. The ΔE for this process is (R = 2cal mol−1 K−1)
A cyclic process is shown in diagram for an ideal gas. Which of the following diagram represents the same process?
Which of the following conditions are not suitable for a spontaneous reaction?
A heat engine carries one mole of an ideal mono-atomic gas around the cycle as shown in the figure. Select the correctoption:
A gas undergoes change from state to state . In this process, the heat absorbed and work done by the gas is and , respectively. Now gas is brought back to by another process during which of heat is evolved. In this reverse process of to :
A diatomic ideal gas undergoes a thermodynamic change according to the P-V diagram shown in the figure. The total heat given to the gas is nearly
(use ln 2 = 0.7)
In diagram shown in figure is a semicircle. The work done in the process is
An ideal gas has temperature T1 at the initial state i shown in the P−V diagram. The gas has a higher temperature T2 at the final states a and b, which it can reach the paths shown. The change in entropy:
An ideal monatomic gas is taken round the cycle as shown in the fig. The work done during the cycle is
Enthalpy change for freezing of of water at and is . Calculate the internal energy change in when of water is converted into ice?
A system goes from to via two processes and shown in the figure. If and are the changes in internal energies in the processes I and Il respectively
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352 videos|596 docs|309 tests
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