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2 July, 19:09

The molar specific heat of a gas is measured at constant volume and found to be 11R/2. Is the gas most likely to be (a) monatomic, (b) diatomic, or (c) polyatomic

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  1. 2 July, 20:31
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    (c) Polyatomic

    Explanation:

    For a mono atomic gas, the specific heat at constant pressure is 5R/2. For a diatomic gas, the specific heat at constant pressure is 7R/2.

    Since 11R/2 is larger than both 5R/2 and 7R/2 it cannot be mono atomic or diatomic hence the gas is polyatomic.

    R is the gas constant.
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