Final answer:
The specific heat capacity of a substance is the amount of heat required to raise the temperature of 1 gram of the substance by 1°C (or 1 kelvin).
Step-by-step explanation:
The specific heat capacity of a substance is the quantity of heat required to raise the temperature of 1 gram of the substance by 1°C (or 1 kelvin). It is denoted by the symbol 'c' and its units are joules per gram per degree Celsius (J/g°C) or joules per gram per kelvin (J/gK).
C. The quantity of heat required to raise the temperature of 1 gram of a substance by 1°C
Specific heat capacity is defined as the amount of heat energy required to raise the temperature of a unit mass (usually 1 gram) of a substance by 1 degree Celsius (or 1 Kelvin). Therefore, option C accurately describes specific heat capacity.