1.

A 27^(@) one mole of an ideal gas is compressed isothermally and reversibly from a pressure of 2 atmto 10 atm , the value of DeltaE and q are (R = 2 cal )

Answer»

`0, -965.84 cal`
`-965.58 cal ,-865.58 cal `
`+ 865.58 cal , -865.58 cal `
`+965.84 cal ,+ 865.58 cal `

Solution :lsothermaly (At CONSTANTTEMPERATURE) and reversibly work is
` W= 2.303 n RTlog(P_(2)/(P_(1)))= 2.303 xx 1xx2 xx 300 log(10/2)`
965.84
at constant TEMPERATURE , `DeltaE=0`
`DeltaE-Q+ W,q--W=-965.84 cal`


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