3 How much energy in joules does it take to raise the temper

3, How much energy in joules does it take to raise the temperature of 255 g of water by 12.5°C ? 4. Calculate the heat capacity of the water in the previous problem. Include units in your answer

Solution

Energy in joules required to raise the temperature i.e heat capacity of water E= m c t

Specific heat of water c = 4.186 joules/gram.^oC

255x12.5x4.186 = 13342.8 joules

Heat capacity of water Q = E energy in joules required to raise temperature= 13342.8 joules= 13.342kJoules= 3.189kcal (kjoules divided by 0.239)