When 
of a gas are introduced into an evacuated flask kept at 
, the pressure is found to be one atmosphere. If 
of another gas added to the same flask the pressure becomes 1.5 atmospheres. The ratio of the molecular weights of these gases will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
As we know that 
When pressure is 
When pressure is 
Therefore, 
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