Consider two ideal diatomic gases A and B at some temperature T. Molecules of the gas A are rigid, and have a mass m. Molecular of the gas B has an additional vibrational mode, and have a mass $$m4$$ . The ratio of the specific heats (CVA$$ and CVB $$) of gas A and B , respectively is :

Question

Consider two ideal diatomic gases A and B at some temperature T. Molecules of the gas A are rigid, and have a mass m. Molecular of the gas B has an additional vibrational mode,  and  have a mass $$m4$$ . The  ratio of the specific heats (CVA$$   and  CVB $$) of gas A and B ,  respectively is :

Infinity Learn · Accepted Answer

For Gas A (diatomic),  degree of freedom (f) $$=$$ $$3+2$$ $$=$$ $$5$$  For Gas B (diatomic$$ $$+$$ $$vibration),  degree of freedom (f) $$=$$ $$3+2$$ $$+2=$$ $$7In$$ general, for any gas Specific heat at constant volume $$CV=fR2Specific$$ heat at constant volume of   $$A=52RTSpecific$$ heat at constant volume of    $$B=72RT$$             ∴  $$Ratio=57$$

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Consider two ideal diatomic gases A and B at some temperature T. Molecules of the gas A are rigid, and have a mass m. Molecular of the gas B has an additional vibrational mode, and have a mass m4 . The ratio of the specific heats (CVA and CVB ) of gas A and B , respectively is :

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