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Heat transfer is the transfer of thermal energy resulting from the variation in the temperatures of two bodies. So, the amount of heat transfer depends on the variation in temperature. The other quantities on which the heat transfer depends are the mass of the substance and its specific heat capacity.

The amount of heat transfer can be calculated using the expression;

\({\rm{Q = mc\Delta T}}\)

Here, \({\rm{Q}}\)is the amount of heat, \({\rm{m}}\)is the mass of the substance, \({\rm{c}}\)is the specific heat capacity and\({\rm{\Delta T}}\)is the variation in temperature. The amount of heat transfer changes with the mass of the substance, its specific heat capacity, and the change in temperature.

So, the three factors that affect the heat transfer are mass, specific heat capacity, and the amount of difference in temperance.