Are you looking for the heat capacity?
Heat capacity is defined at the temperature rise of a material for a given energy input. The formula is
Q = m Cp dT, Q is the energy, m is the mass, Cp is the heat capacity and dT is the temperature rise.
69.5 kJ = 1.035 kg * Cp * 11.4C. Cp = 5.89 kJ/kgC
Heat capacity is defined at the temperature rise of a material for a given energy input. The formula is
Q = m Cp dT, Q is the energy, m is the mass, Cp is the heat capacity and dT is the temperature rise.
69.5 kJ = 1.035 kg * Cp * 11.4C. Cp = 5.89 kJ/kgC