The specific heat capacity of a substance is temperature dependent and is given by the formula \( C = kT \), where \( k \) is a constant of suitable dimensions in SI units, and \( T \) is the absolute temperature. If the heat required to raise the temperature of \( 1 \, \text{kg} \) of the substance from \( -73^\circ \text{C} \) to \( 27^\circ \text{C} \) is \( nk \), the value of \( n \) is ____________. [Given: \( 0 \, \text{K} = -273^\circ \text{C} \).]
