<span>Hydrogen has an atomic mass of about 1 and It contains one proton, orbited by a single electron. Helium has an atomic mass of approximately 4 and contains of 2 protons and 2 neutrons, orbited by 4 electrons. But all of this is irrelevant because luminosity is related to gravity, and that mass would identical, luminosity would be near identical. *insert luminosity relation equation here*</span>
Answer : The amount of energy needed to raise one gram of a substance one degree Celsius is a characteristic property known as, Specific heat capacity.
Explanation:
Heat capacity : It is defined as the heat required to raise the temperature by one degree.
Specific heat capacity : It is defined as the amount of heat required by one gram of a substance to raise its temperature by one degree Celsius.
The heat required to change the temperature of a substance is related to heat capacity of the substance by the expression as :
where,
C = specific heat capacity
m = mass of a substance
q = heat required
= change in temperature of substance
Hence, the amount of energy needed to raise one gram of a substance one degree Celsius is a characteristic property known as, Specific heat capacity.