Answer:
2.0 x 10^-2 L
Explanation:
PV=nRT
Substitute values into the ideal gas equation.
P = 780 kPa
V = ?
n = 21 mol
R = 8.314 L-kPa/mol-K
T = 900 K
(780 kPa)(V) = (21 mol)(8.314 L-kPa/mol-K)(900 K)
V = (21 mol)(8.314 L-kPa/mol-K)(900K) / (780 kPa)
V = 201.4561...
Round to sig figs.
V = 2.0 x 10^2 L
