1.

At 27 ^(@) C , one mole of an ideal gas is compressed isothermallty and reversiblty and reversibly from a pressure of 2 atm to 10 atm . The value of DeltaE and q are ( R = 2 cal )

Answer»

`- 965 . 84 cal `
`-965.84 cal , -865 .58 cal `
` 865.58 , - 865.58 cal`
`965 . 84 cal , + 865 . 58 cal `

Solution :isothermally and reversibly work ` W = 2.303 n RT log(P_(2)//P_(1))`
` = 2.303 xx1 xx 2 xx 300 LG (10//2) = 965.84 `
at constant temperature ,` DeltaE=0,q=-W=-965.84 cal`


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