A) 38.85 cm of Hg
B) 21.85 cm of Hg
C) 10.85 cm of Hg
D) 14.85 cm of Hg
Correct Answer: C
Solution :
Volume of first cylinde \[{{V}_{1}}=5\] litres Volume of second cylinder \[{{V}_{2}}=30\] litre Hence, total volume \[{{V}_{2}}={{V}_{1}}+{{V}_{2}}=5+30=35\] litre The initial pressure \[{{p}_{1}}\] at NTP \[{{p}_{1}}=76cm\] of Hg Now from the Boyles law, \[{{p}_{1}}{{V}_{1}}={{P}_{2}}{{V}_{2}}\] Hence \[{{p}_{2}}=\left( \frac{{{V}_{1}}}{{{V}_{2}}} \right){{p}_{1}}\] \[=\frac{5}{35}\times 76=10.85cm\]of Hg
You need to login to perform this action.
You will be redirected in
3 sec
