Question

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

Answer 1

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

Answer 2

use the formula: (∆Q)heat energy = moles×Cp×∆T

10^3(kJ) = 100/18 (moles) × 75 × ∆T

by simplifying we get

∆T = 2.4 k