The Total solution for NCERT class 6-12
Calculate the number of kJ of heat necessaryto raise the temperature of 60.0 g of aluminium from 35°C to 55°C. Molar heatcapacity of Al is 24 J mol–1 K–1.
From the expression of heat (q),
q = m. c. ΔT
Where,
c = molar heat capacity
m = mass of substance
ΔT = change in temperature
Substituting the values in the expressionof q:
q = 1066.7 J
q = 1.07 kJ