Properties and Physical Behavior of Gases

Question 1

Which formula is correct for calculating pressure?

Accepted Answer

P = force ÷ area

Question 2

Which sample of gas has the highest average kinetic energy?

Accepted Answer

nitrogen at 60°C

Question 3

What phase change occurs during sublimation?

Accepted Answer

solid→gas

Question 4

Heat is transferred from a hot object to a cold object.

Accepted Answer

True

Question 5

When an inverted glass jar is lowered into a container of water, the water doesn't fill it up.

Accepted Answer

This is because air takes up space

Question 6

The gas pressure inside a container decreases when the

Accepted Answer

temperature is decreased

Question 7

If you purchase an inflated balloon and take it outside on a cold day

Accepted Answer

It decreases in volume

Question 8

If the force applied to an object increases, how is the pressure affected? Constant area.

Accepted Answer

The pressure will increase

Question 9

On a graphs, the independent variable is placed on the y-axis.

Accepted Answer

False

Question 10

To convert from Celsius to Kelvin, which is the correct operation?

Accepted Answer

add 273

Question 11

Which statement is part of the ideal gas concept?

Accepted Answer

Molecules of an ideal gas have elastic collisions.

Question 12

Which term best describes the relationship between temp and pressure when volume is constant.

Accepted Answer

direct

Question 13

If the temp of one mole of gas is constant and the volume doubles, the pressure exerted by it

Accepted Answer

decreases

Question 14

Which statement best explain why a confined gas exerts pressure?

Accepted Answer

The molecules collide with the container walls.

Question 15

The pressure a gas exerts is primarily the result of

Accepted Answer

molecular collisions with the container

Question 16

Standard temperature is

Accepted Answer

0°C

Question 17

Which property of gases allows a drinking straw to work?

Accepted Answer

Air pressure

Question 18

Using a "ballroom dancers" analogy for kinetic molecular theory, the room size represents

Accepted Answer

The volume

Question 19

Which best describes the relationship between pressure and volume of a gas?

Accepted Answer

Inverse

Question 20

Transferred energy from one object to another is called

Accepted Answer

heat

Question 21

Scientific questions are testable and answerable

Accepted Answer

True

Question 22

Which term best describes the relationship between temperature and volume

Accepted Answer

direct

Question 23

As a sample of an unreactive gas is compressed in a cylinder, the number of molecules

Accepted Answer

remains the same

Question 24

What is the SI unit of force?

Accepted Answer

Newton

Question 25

Which law or theory can be used to explain both Boyle's law and Charles' Law?

Accepted Answer

kinetic molecular theory

Properties and Physical Behavior of Gases

Questions 25

Properties and Physical Behavior of Gases

Questions 25