Answer to Question #147592 in General Chemistry for aly

Question

Which statement is false? *

1.Gases can be expanded without limit.
2.Pressure must be exerted on a sample of a gas in order to confine it.
3.The density of a gas is constant as long as its temperature remains constant.
4.Gases diffuse into each other and mix almost immediately when put into the same container.

Answer 1

Statement 3 is false.

The density of a gas also depends on the pressure exerted upon the gas and volume occupied by the gas. Density of a gas increases with increase in applied pressure and decreases with increase in volume even though the temperature is kept constant.