What number of moles of oxygen would exert a pressure of ...
What number of moles of oxygen would exert a pressure of 10 atm at 320 K in an 8.2 dm3 cylinder?
[R=0.082 atm dm−3 mol−1 K−1]
0.32
1.52
3.13
31.25
Correct answer is C
P = 10atm, T= 320K, V= 8.2dm3
PV =nRT
n = P * V/R * T
10 * 8.2/0.082 * 320
= 82/26.24
n = 3.13
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