The number of kilojoules needed to raise the temperature of 32.0 g of water from 12.0 degree centigrade to 54.0 degree centigrade is?

q(Joules) = mass * specific heat * change in temperature

q = 32.0 grams H2O * 4.180 J/gC *(54.0 C - 12.0 C)

= 5617.92 Joules

this is, of course

5.62 kilojoules