The initial state of a certain gas is (Pi , Vi , Ti ). It undergoes expansion till its volume becomes Vf . Consider the following two cases:
(a) The expansion takes place at constant temperature.
(b) The expansion takes place at constant pressure. Plot the P-V diagram for each case. In which of the two cases, is the work done by the gas more?
The initial state of a certain gas is (Pi , Vi , Ti ). It undergoes expansion till its volume becomes Vf . Consider the following two cases:
(a) The expansion takes place at constant temperature.
(b) The expansion takes place at constant pressure. Plot the P-V diagram for each case. In which of the two cases, is the work done by the gas more?
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1 Answer
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This is a short answer type question as classified in NCERT Exemplar
process 1 isochoric and process 2 is isothermal .
Since, work done = area under P-V curve . here area under the pV curve 1 is more . so work done is more when the gas expands in isochoric process.
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