One mole of an ideal gas in initial state A undergoes a cyclic process \( A B C A \), as shown i...
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One mole of an ideal gas in initial state A undergoes a cyclic process \( A B C A \), as shown in the figure. Its pressure at \( \mathrm{A} \) is \( \mathrm{P}_{0} \). Choose the correct option(s) from the following:
\( \mathrm{P} \)
W
(a) Internal energies at \( A \) and \( B \) are the same
(b) Work done by the gas in process \( \mathrm{AB} \) is \( \mathrm{P}_{0} \mathrm{~V}_{0} \ln 4 \)
(c) Pressure at \( C \) is \( \frac{P_{0}}{4} \)
(d) Temperature at \( \mathrm{C} \) is \( \frac{\mathrm{T}_{0}}{4} \)
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