The molar heat capacity of water at constant pressure Cm,p is 75JK−1mol−1 . What will be the increase in temperature of water when 1KJ of energy is supplied for the heating of the sample?

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1.2 K

2.4K

3.6K

answer is B.

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Detailed Solution

Q=nCm,pΔTQ=nCm,pΔTΔT=QnCp,m=1×10310018×75=2.4K