Answer:
Volume of gas ( V ) = 19.8935 L
Explanation:
Data Given:
no. of mole of gas (n) = 21.0 mole
Pressure P = 78.0 atm
Temperature T = 900 K
Ideal gas constant = 0.08206 L atm K⁻¹ mol⁻¹
Volume of gas = ?
Formula used for Ideal gases
<em> </em><em> </em>PV = nRT
As we have to find volume of the gas:
We will rearrange the ideal gas equation as below:
V = nRT / P ........................................... (1)
Put value in equation (1)
V = 21.0 mol x 0.08206 L atm K⁻¹ mol⁻¹ x 900K / 78.0 atm
V = 19.8935 L
Volume of gas V = 19.8935 L