Question

What pressure will be exerted by 25.0 g of `CO_2` at temperature of 25 C and a volume of 500. mL?

Answer 1

Pressure will be reasonably high.

Explanation:

We have approximately `0.5*mol` of gas confined in a `1/2*L` volume. Pressure will be reasonably high, however, we can use the Ideal Gas Equation as a first approximation.

`"Pressure"=((25.0*cancelg)/(44.0*cancelg*cancel(mol^-1))xx0.0821*cancelL*atm*cancel(K^-1)*cancel(mol^-1)xx298*cancelK)/(0.500*cancelL)`

`=27.8*atm`

The actual pressure is likely to deviate considerably from this value. The ideal gas equation is used as a first approximation.