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Calculate the workdone, and change in internal enegry taking place when an ideal gas undergos isothermal expansion.

Answer» a. `DeltaU` for an ideal gas, `U` depends on temperature. Since temperature is constant<br> `rArr DeltaU = 0`<br> b. According to the first law<br> `DeltaU = dq +dW`<br> Since `DeltaU =0`<br> `:. dq=- dw`


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