Question

For a gas `"R"/"C"_"v" = 0.4,` where 'R' is the universal gas constant and 'C_v' is molar specific heat at constant volume. The gas is made up of molecules which are ______.

Options

• rigid diatomic

• monoatomic

• non-rigid diatomic

• polyatomic

Answer 1

For a gas `"R"/"C"_"v" = 0.4,` where 'R' is the universal gas constant and 'C_v' is molar specific heat at constant volume. The gas is made up of molecules which are rigid diatomic.

Explanation:

Given,

`"R"/"C"_"v" = 0.4`

`therefore ("C"_"p" - "C"_"v")/"C"_"v" = 0.4`

`therefore "C"_"p"/"C"_"v" = 0.4 + 1`

`therefore gamma = 1.4`

`therefore "the molecules of the gas are rigid diatomic."`