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One mole of a monoatomic ideal gas is ta...

One mole of a monoatomic ideal gas is taken through the cycle shown in figure The pressure and temperature at A, B etc are denoted by `P_A,P_B - , T_A, T_B - `, etc respectively
A `to` B adiabatic expansion
B `to` C cooling at constant volume
`C to D` adiabatic compression
`D to A` heating at constant volume
Given that : `T_A`=1000 K, `P_B=2/3P_A` and `P_C=1/3P_A`

the heat lost by the gas in process B`to`C

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The correct Answer is:
(b)425 K
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