Question

Question #d9052

Answer 1

Under `3` `"atmospheres."`

Explanation:

`P=(nRT)/V` `=` `(((0.390*cancel(g))/(4.00*cancel(g)*cancel(mol^-1)))xx0.0821*cancel(L)atmcancel(K^-1)*cancel(mol^-1)xx301cancel(K))/(0.836*cancel(L))`

The only real problem in answering this question is the choice of `R`, the universal gas constant. Chemists would tend to use `R=0.0821*L*atm*K^-1*mol^-1` because it gives an answer in atmospheres, whose magnitude can be readily appreciated.