Chemistry

Problem

A potato chip (crisp) was ignited, and the flame was used to heat a test tube containing water.


Mass of water/g	7.8
Mass of chip/g	1.2
Initial temperature/°C	21.3
Final temperature/°C	22.6

a. Calculate the heat required, in kJ, to raise the temperature of the water, using data in the table above and from section 2 of the data booklet. [1] b. Determine the enthalpy of combustion of the potato chip, in

\text{kJ g}^{-1}

. [1]

Browse the problem library