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Grade 11IIT JEE Entrance Exam

molar heat capacity of water at cont. pressure is 75j/k/mol . when 1 kj heat is supplied to 100 g of water which is free to expand, the increase in temperature of water is

Profile image of liza
7 Years agoGrade 11
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1 Answer

Profile image of Arun
ApprovedApproved Tutor Answer7 Years ago
use the formula: (∆Q)heat energy = moles×Cp×∆T

10^3(kJ) = 100/18 (moles) × 75 × ∆T

by simplifying we get 

∆T = 2.4 kelvin

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