Carbon dioxide is stored in a 10.0 L cylinder at three different stated conditions
CHEMISTRY · Multi-part · AP · Chemistry · Properties of Substances and Mixtures · Properties of Substances and Mixtures
Problem
Carbon dioxide is stored in a 10.0 L cylinder at three different stated conditions, each containing exactly 0.40 mol of gas.
• State I: 290 K and 200 atm
• State II: 250 K and 10 atm
• State III: 310 K and 10 atm
(a) For each state, determine whether the measured pressure would be greater than, less than, or approximately equal to the value predicted by the ideal gas law. Provide a brief justification based on the dominant non-ideal effect at that state.
(b) Rank the three states in order of increasing magnitude of deviation from ideality (smallest absolute deviation first). Support your ranking with clear reasoning that references both temperature and pressure effects.