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A bubble of 8 moles of helium is submerged at a certain depth in water. The temperature of water increases by `30^(@)C` How much heat is added approximately to helium during expansion ?A. 4000 JB. 3000 JC. 3500 JD. 4500 J

Answer» Correct Answer - B
Heat added to helium during expansion ,
`H=nC_(v)DeltaT=8xx(3)/(2)Rxx30(C_(V)" for monoatomic gas" =(3)/(2)R)`
=360R
360xx8.31 ` (R=8.31J"mol"^(-1)-K^(-1))` `H~~3000J`


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