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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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