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  • A vessels contains ot dioxyger gas at ST P 1. The bras is Now transferred to another vessel

A vessels contains 4 \mathrm{~g} ot dioxyger gas at ST P 1. The bras is Now transferred to another vessel at constant temperature, where pressure become one fourth of the original pressure.
The at volume of New vessels in \mathrm{L} is:-
[Given - Molar volume at STP is 29-4L]

Option: 1

11.2


Option: 2

10.2


Option: 3

12.2


Option: 4

13.2


Answers (1)

best_answer

No. at moles at
\mathrm{O_{2}=\frac{\text { trimer weight ot } O_{2}}{\text { Mol. weight ot } O_{2}}=\frac{4}{32}=125}

Molar volume at
\mathrm{\text { ST }=.125 \times 22.4=2.8 \mathrm{~L}}
\mathrm{P_{1}=1 \text { 1\, atm }}
\mathrm{ v_{1}=2.8 \mathrm{~L}, \quad P_{2}=\frac{1}{4} \quad v_{2}=?}

According to Boyle's Law \mathrm{ P_{1} v_{5}=P_{2} v_{2}}
\mathrm{ \therefore 1 \times 2.8 =\frac{1}{4} \times v_{2}}
\mathrm{ v_{2} =2.8 \times 4 }
\mathrm{ =11.2 \mathrm{~L}}

Posted by

sudhir kumar

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