Consider the ideal pressure equation for gases, where a is the proportionality constant, n is the moles of molecules, and V is the gas volume. Identify the correct statement(s) about the proportionality constant. 1. A low value for a reflects weak intermolecular forces among the gas molecules. 2. A high value for a reflects weak intermolecular forces among the gas molecules. 3. Among the gases H₂, N₂, CH₄, and CO₂, H₂ has the lowest value for a.

Question

Quizplus · Accepted Answer

The ideal gas equation is PV=nRT, and the proportionality constant in this equation is R. The equation given in the question does not specify which constant is being referred to as "a." Option 1 is incorrect because weak intermolecular forces result in gases occupying more space, and hence a greater value of V. Option 2 is incorrect because a high value of the proportionality constant would indicate a greater effect of pressure on the gas, which is not related to intermolecular forces. Option 3 is correct because H₂ has the strongest intermolecular forces among the given gases, resulting in a lower value of "a" in the ideal gas equation.

​Consider the Ideal Pressure Equation for Gases, Where a Is

Consider the Ideal Pressure Equation for Gases, Where a Is