Question on: JAMB Chemistry - 2020
If the quantity of oxygen occupying 2.76L container at a pressure of 0.825 atm and 300k is reduced by one-half, what is the pressure exerted by the remaining gas?
A
1.650atm
B
0.825atm
C
0.413atm
D
0.275atm
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Correct Option: A
By applying the combined gas law formula,
Given:
P\(_1\) = 0.825, V\(_1\) = 2.76 L, V\(_2\) = 1.38 L, P\(_2\) = ?
T1 = T2; we would have P\(_2\) = [ P\(_1\) X V\(_1\) ] ÷ V\(_2\)
[0.825 X 2.76] ÷ 1.38
= 1.650atm
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