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When {2}{g} of a gas {A} is introduced into an evacuated flask

Question

When $2 g$ of a gas $A$ is introduced into an evacuated flask kept at $25^{\circ} C$ , the pressure is found to be $1 a t m$ . If $3 g$ of another gas $B$ is then heated in the same flask, the total pressure becomes $1.5 a t m$ . Assuming ideal gas behaviour, calculate the ratio of the molecular weights $M_{A}$ and $M_{B}$ .

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When

2 g

of a gas

A

is introduced into an evacuated flask kept at

25^{\circ} C

, the pressure is found to be

1 a t m

. If

3 g

of another gas

B

is then heated in the same flask, the total pressure becomes

1.5 a t m

. Assuming ideal gas behaviour, calculate the ratio of the molecular weights

M_{A}

and

M_{B}

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Question Text	When $2 g$ of a gas $A$ is introduced into an evacuated flask kept at $25^{\circ} C$ , the pressure is found to be $1 a t m$ . If $3 g$ of another gas $B$ is then heated in the same flask, the total pressure becomes $1.5 a t m$ . Assuming ideal gas behaviour, calculate the ratio of the molecular weights $M_{A}$ and $M_{B}$ .
Answer Type	Text solution:1
Upvotes	150