B3 MCQs: Gases qualitative
The Kelvin temperature of an ideal gas is a measure of the
Kelvin temperature is proportional to the average KE of the gas molecules.
A cylinder contains a mixture of two gases gas A has small molecules gas B has large molecules represented by the diagram below.
Which of the following statements is true?
The KE of the molecules is the same so the ones with smaller mass must be moving faster ½mv2
A gas is enclosed in a piston as shown. When the gas is compressed its temperature increases because the piston
The piston hits the molecules like a tennis racket hitting a ball.
Which of the following is not an assumption of the kinetic model of an ideal gas?
B maybe true but its not one of the assumptions on which the theory is based.
The temperature of an ideal gas is reduced. Which one of the following statements is true?
When a liquid changes to a solid it's temperature does not change because
When a liquid changes to a solid the atoms go from being able to move freely to being arranged in fixed positions. his results in a lower PE which must be lost inthe form of thermal energy.