Question

Calculate the volume occupied by 0.5 moles of CO2 at -25°C and 760 mm pressure. [At STP volume is 22.7 lt/mole]

Answer 1

$$\begin{gathered} Accordingtoidealgasequation \\ pV=nRT \\ V=\frac{nRT}{p} \\ numberofmoles=0.5 \\ p=760mmofHg=1atm \\ R=gascons\tan t=0.0821Latm \\ T=25{}^{0}C=273+25=298K \\ V=\frac{0.5\times 0.0821\times 298}{1} \\ =12.23L \end{gathered}$$