A) 10.8 cm of Hg
B) 14.9 cm of Hg
C) 21.8 cm of Hg
D) 38.8 cm of Hg
Correct Answer: A
Solution :
Given that, \[{{p}_{1}}=76\,cm\] of Hg (initial pressure at NTP) \[{{p}_{2}}=?,\,\,{{V}_{1}}=5L,\,\,{{V}_{2}}=30+5=35\,L\] According to Boyles law, \[{{p}_{1}}{{V}_{1}}={{p}_{2}}{{V}_{2}}\] \[76\times 5={{p}_{2}}\times 35\] \[{{p}_{2}}=\frac{76\times 5}{35}\] = 10.8 cm of Hg
You need to login to perform this action.
You will be redirected in
3 sec
