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1 mole of ideal gas is allowed to expand reversibly and adiabatically from a temperature of $$27°$$C. The work done is $$3$$ kJ mol$$^{-1}$$. The final temperature of the gas is ______ K (Nearest integer). Given $$C_v = 20$$ J mol$$^{-1}$$ K$$^{-1}$$
Correct Answer: 4
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