Exercise 5 | Thermochemistry

A substance increases in temperature by 167°C when a 2.56 kg sample of it absorbs 78.5 kJ of heat.

What is the specific heat capacity of the substance?

cS = cPm = qPmT


qP = energy added as heat (in J)

ΔT = change of temperature (in K)

m = mass (in g)

 

cS = 78.5 × 1032.56 × 103 ×440 = 6.97 x 10-2 J.g-1.K-1