Heat exchanged in a chemical reaction, at constant temperature and pressure, is calleda)entropyb)enthalpyc)free energyd)internal energyCorrect answer is option 'B'. Can you explain this answer?

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Heat exchanged in a chemical reaction, at constant temperature and pressure, is called

a)
entropy
b)
enthalpy
c)
free energy
d)
internal energy

Correct answer is option 'B'. Can you explain this answer?

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Heat exchanged in a chemical reaction, at constant temperature and pre...

Define all the terms to find the correct answer:
(a) Entropy : It is the measurement of randomness or disorder of system.
(b) Enthalpy : It is the total heat content of system or it is the heat which is exchanged in a chemical reaction at constant temperature andpressure.
(c) Free energy : It is the energy of system which can be converted into useful work.
(d) Internal energy : It is the energy stored within a substance.

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