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The molar heat capacity of water at constant pressure, C, is 75 JK^–1 mol^–1. When 1.0KJ of heat is supplied to 100g of water which is free to expand, the increase in temperature of water is

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Detailed Solution

q = m Cp ΔT

q = 1KJ =1000J ;

$C_p = 75 JK^{-1} mol^{-1} =frac{75}{18} JK^{-1} gm^{-1}$ ( since Molecular weight of water = 18gm)
$large 1000 = ;100 times ;frac{{75}}{{18}};Delta T$
ΔT = 2.4 K

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