Assertion: The ratio (Cp/CV) is more for helium gas than for hydrogen gas. Reason: Atomic mass of helium is more than that of hydrogen.

Question

Assertion: The ratio (Cp/CV) is more for helium gas than for hydrogen gas. Reason: Atomic mass of helium is more than that of hydrogen. (A) If both the assertion and reason are true and reason explains the assertion. (B) If both the assertion and reason are true but reason does not explain the assertion. (C) If assertion is true but reason is false. (D) If assertion is false but reason is true.

Tardigrade Admin · Accepted Answer

As helium is monoatomic and hydrogen is diatomic, so, helium has less number of degrees of freedom than hydrogen

∴ C_{p} / C_{v}

is more tor helium than that of hydrogen
Assertion and reason as true but reason is not a correct explanation of assertion.

Q. Assertion: The ratio CV​Cp​​ is more for helium gas than for hydrogen gas. Reason : Atomic mass of helium is more than that of hydrogen.

If both the assertion and reason are true and reason explains the assertion.

If both the assertion and reason are true but reason does not explain the assertion.

If assertion is true but reason is false.

If assertion is false but reason is true.

As helium is monoatomic and hydrogen is diatomic, so, helium has less number of degrees of freedom than hydrogen ∴Cp​/Cv​ is more tor helium than that of hydrogen Assertion and reason as true but reason is not a correct explanation of assertion.

Q. Assertion: The ratio $\frac{C _{p}}{C _{V}}$ is more for helium gas than for hydrogen gas.
Reason : Atomic mass of helium is more than that of hydrogen.

As helium is monoatomic and hydrogen is diatomic, so, helium has less number of degrees of freedom than hydrogen
$∴ C_{p} / C_{v}$ is more tor helium than that of hydrogen
Assertion and reason as true but reason is not a correct explanation of assertion.