The molar heat capacity of water at constant pressure, C P is 75 J K - 1 m o l - 1 . When 10 kJ of heat is supplied to 1 kg water which is free to expand, the increase in temperature of water is

Question

The molar heat capacity of water at constant pressure, C P is 75 J K - 1 m o l - 1 . When 10 kJ of heat is supplied to 1 kg water which is free to expand, the increase in temperature of water is, 2.4 K, 4.8 K, 3.3 K, 7.2 K

MARKS App · Accepted Answer

q m = mc ΔT q m = 10 kJ or 10000 J, m = 1000 g c = 75 J K - 1 m o l - 1 . Number of moles = 1000 18 = 55.5 m o l ΔT = 10000 55 .5 × 75 = 2 .4 K

Search any question & find its solution

Looking for more such questions to practice?