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Question

If 2 moles of an ideal gas at 546 K occupies 44.8 L, the pressure must be.

A
2 atm
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B
3 atm
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C
4 atm
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D
1 atm
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Solution

The correct option is D 2 atm
From gas equation, PV=nRT

Given that :

V=44.8L
n=2
R=0.0821 L atm/mol/K
T=546K

P=nRTV

=2×0.0821×54644.8

=2atm

Therefore, the option is A.

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