Why specific heat of air increases with increase in temperature?
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Explanation:
The density of air decreases with an increase in temperature, since with increase in temperature, the molecules get energy to overcome the inter-molecular forces of attraction, and so the mean distance between them increases.
The specific heat capacity of air increases with increase in temperature because of the activation of the rotational and vibrational modes of energy at higher temperatures (as air is primarily composed of nitrogen and oxygen); so more energy is needed to increase the temperature of a particular mass of air.
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