4 1 8 4 J of energy is needed to heat 1 kg of water by 1 ∘ C ,but only 140 J is needed to heat 1 kg of mercury by 1 ∘ C .Which material has the higher specific heat capacity?
heat capacity is defined as the number of heat units that must be added to a substance to raise the temperature one degree C. The higher the heat capacity the more heat that must be added to get a temperature change. Which one of your substances takes more heat energy to raise the temperature? This is the one with the highest heat capacity.