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hardQ. No. 15179-what-are-the-two-specific-heats-of-gases-called
What are the two specific heats of gases called?
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ACp and Cv
BCs and Ck
CCh and Cl
DCa and Cb
Correct Answer: Cp and CvYour Answer: A
Explanation
Gases uniquely have two specific heats unlike solids and liquids. Option A (Cp and Cv) is CORRECT — gases have two specific heats: Cv = specific heat at constant VOLUME. Cp = specific heat at constant PRESSURE. At constant pressure gas expands and does work (W=PΔV) against surroundings so MORE heat is needed. Options B C D (Cs Ck Ch Cl Ca Cb) are all wrong — these are not standard thermodynamic symbols for any specific heats of gases.
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What is heat in physics?
Heat is a form of energy that transfers between objects or systems due to a temperature difference, moving from a hotter body to a cooler one until thermal equilibrium is reached.