Assertion Cp can be less than CV. Reason Cp CV=R is valid only for ideal gases.

Question

Assertion Cp can be less than CV. Reason Cp CV=R is valid only for ideal gases. (A) If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion (B) If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion (C) If Assertion is true but Reason is false (D) If both Assertion and Reason are false

Tardigrade Admin · Accepted Answer

Cp can be less than CV for those substances which contract on heating like for water from 0 to 4° C.

Q. Assertion $C_{p}$ can be less than $C_{V}$ .
Reason $C_{p} C_{V} = R$ is valid only for ideal gases.

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion

If Assertion is true but Reason is false

If both Assertion and Reason are false

$C_{p}$ can be less than $C_{V}$ for those substances which contract on heating like for water from 0 to $4^{\circ} C$ .

Q. Assertion Cp​ can be less than CV​. Reason Cp​CV​=R is valid only for ideal gases.