A) decreased by 5.26%
B) increased by 5.2%
C) decreased by 11%
D) increased by 11%
E) increased by 15%
Correct Answer: B
Solution :
From Boyles law \[pV=RT\] \[\therefore \] \[pV={{p}_{2}}\left( V-\frac{5}{100}V \right)\] \[\Rightarrow \] \[pV={{p}_{2}}\left( \frac{95}{100}V \right)\] \[\Rightarrow \] \[{{p}_{2}}=\frac{20}{19}V\] Increase in pressure \[=\left( \frac{20}{19}-1 \right)\times 100=\frac{1}{19}\times 100=5.26%\]
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