Respuesta :
Specific heat capacity of a substance is the amount of heat required to raise the temperature by one degree Celsius of one gram of a substance . Therefore, student a and student b are correct.
How does chemistry define temperature?
The free energy from all of the particles or atoms in a substance is what chemists refer to as the substance's temperature. The kinetic energy of a substance's constituent particles varies.
Briefing :
q = n ×ΔH
where
q = amount of heat
n = no of moles
ΔH = enthalpy
n = w / M.M
Both students are correct as energy can be positive as well as negative. Any reaction in which energy is added, energy value comes out to be positive and reaction is called endothermic reaction. Any reaction in which energy is released, energy value comes out to be negative and reaction is called exothermic reaction.
Therefore, student a and student b are correct.
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