The specific heat of octane, C8H18(l), is 2.22 J g-K.
(a) How many J of heat are needed to raise the temperature of 80.0 g of octane from 10.0 °C to 25.0 °C?
(b) Which will require more heat, increasing the temperature of 1 mol of C8H18(l) by a certain amount or increasing the temperature of 1 mol of H2O(l) by the same amount?