Question

An unknown gas occupies 10dm³ of space at 4atm and 293kelvin.what is the amount of moles of gas present if the gas iss a real gas? Take R=0.082atm/(dm³k)

Answer 1

Clapeyron-Mendeleev equation:

$PV=nRT$,

where P - pressure, V - volume, n - amount of the gas, R - gas constant, T - temperature.

$n=\frac{PV}{RT}$

$n=\frac{4 \cdot 10}{0.082 \cdot 293} \approx 1.66 \; mol$

Answer: 1.66 mol.