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Two moles of an ideal monoatomic gas undergoes a process `VT =` constant. If temperature of the gas is increased by `DeltaT = 300K`, then the ratio `((DeltaU)/(DeltaQ))` isA. 2B. 3C. 4D. 6 |
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Answer» Correct Answer - B Given, `VT =` constant `PV^(2) =` constant Polytropic constant, `x = 2` `:.` Molar heat capcity, `C = C_(v) + (R )/(1 - x)` `= (3R)/(2) + (R )/(1 - 2)` `= (R )/(2)` `:. DeltaQ = nCdeltaT = 2xx (R )/(2) xx 300 = 300R` `DeltaU = nC_(v)DeltaT = 2 xx (3R)/(2) xx 300 = 900R` `:. (DeltaU)/(DeltaQ) = (900R)/(300R) = 3` |
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