12.2 g of I₂(s) is placed in an evacuated 15 L container and heated to 100°C. At this temperature all of the solid sublimes into vapor. What is the pressure in the container?

Question

Quizplus · Accepted Answer

Using the ideal gas law, PV = nRT, where n = mass/molar mass = 12.2 g / 253.8 g/mol = 0.0481 mol, R = 8.314 J/(mol·K), T = 373 K, and V = 15 L = 0.015 m³, the pressure P = (nRT)/V = (0.0481 mol × 8.314 J/(mol·K) × 373 K) / 0.015 m³ = 9.93×10³ Pa.

122 G of I2(s) Is Placed in an Evacuated 15

122 G of I₂(s) Is Placed in an Evacuated 15