The ideal gas law for a fixed amount of gas is pV = nRT. If n = 0.50 mol, R = 0.08206 L·atm/(mol·K), T = 300 K, compute pressure p when V = 12 L.

• A. Approximately 1.0258 atm
• B. Approximately 1.2385 atm
• C. Approximately 0.1025 atm
• D. Approximately 12.3095 atm

Answer: (A)