Assertion :At constant temperature, if pressure on the gas is doubled density is also doubled. Reason: At constant temperature, molecular mass of a gas is directly proportional to the density and inverse proportional to the pressure.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Assertion is correct but Reason is incorrect

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Both Assertion and Reason are incorrect

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C Assertion is correct but Reason is incorrect
Assertion
At constant temperature, if pressure on the gas is doubled density is also doubled.
$P V = n R T = \frac{W}{M} R T$
$P M = \frac{W}{V} R T$
$P M = d R T$
$P \propto d$ at constant T
Reason
The molecular mass of a gas is a characeteristic of the gas and is independent of the density or the pressure.

Assertion is correct but Reason is incorrect.

Suggest Corrections

Similar questions

Assertion

Lithium sulphate does not form alums.

Reason

$L i^{+}$ is too small to form a stable lattice required for double-salt/alum formation.

H_{2}

H e

(1 + \frac{P b}{R T})

H_{2}

H e

ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - $C H_{2}$ - group.

Join BYJU'S Learning Program