Thermodynamics
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I would like to ask why it is said that constant-pressure specific heat absorbs more heat than constant-volume specific heat The specific heat at constant pressure corresponds to the case where a portion of the gas does work as it expands, whereas the specific heat at constant volume is related to the situation where all the heat absorbed by the gas is converted into internal energy
This is because the specific heat at constant pressure and the specific heat at constant volume refer to the total amount of heat absorbed by the medium; the specific heat at constant volume does not do work due to expansion, whereas the specific heat at constant pressure requires that part of the absorbed heat be converted into energy for expansion. When the same medium is heated by the same amount, the heat Q absorbed by the specific heat at constant pressure is equal to the increase in internal energy plus the work done, while the heat Q absorbed by the specific heat at constant volume equals only the increase in internal energy. (Under the same experimental conditions, without considering heat losses through other pathways)