How do real gases differ from ideal gases?

Molecules of real gases have volume.

Which statement is not part of the Kinetic Molecular Theory?

All particles of matter have the same shape and volume.

What causes pressure inside a tire?

gas molecules colliding with the wall of the tire

Which statement is true if a substance has a high specific heat capacity?

a large amount of energy to increase its temperature.

Which statement best explains why a confined gas exerts pressure?

The molecules collide with the container walls.

Which statement is part of the ideal gas concept?

Molecules of an ideal gas have elastic collisions.

In studying gases, the acronym, STP stands for

standard temperature and pressure

Under which conditions do real gases behave least like an ideal gas?

low temperature and high pressure

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Unit 2B Physical Behavior of Gases

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Chemistry in the Community Unit on the Ideal Gas law and Avogadro's Law

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Questions 20

Answers

1
Which sample of gas has the highest average kinetic energy?
nitrogen at 60°C
carbon dioxide at 20°C
hydrogen chloride at 40°C
helium at 0°C
2
Standard temperature is
100°C
273°C
0 Kelvin
0°C
3
How do real gases differ from ideal gases?
Molecules of real gases molecules exert more force.
Molecules of real gases have volume.
Molecules of real gases are larger.
4
Which law or theory can be used to explain both Boyle's law and Charles' law?
law of conservation of charge
law of conservation of atoms
atomic theory
kinetic molecular theory
5
A scientific theory becomes a scientific law after it has been proven
false
true
6
Transferred energy from one object to another is called
kinetic energy
thermal energy
temperature
heat.
7
Which statement is not part of the Kinetic Molecular Theory?
Matter is composed of very tiny particles.
The particles of matter are in continual motion.
The particles of matter do not lose net energy in collisions
All particles of matter have the same shape and volume.
8
Temperature is the measure of the
average heat
average potential energy
average kinetic energy.
average thermal energy.
9
Cooling a gas such that it turns into a liquid is called
condensation.
deposition.
sublimation
vaporization.
10
Deposition occurs when a
solid turns into a gas.
gas turns into a solid.
liquid turns into a solid.
solid turns into a liquid.
11
What causes pressure inside a tire?
gas molecules colliding with each other
the diffusion of the gases
constant changing of temperature
gas molecules colliding with the wall of the tire
12
Which statement is true if a substance has a high specific heat capacity?
Its temperature has been increased to the maximum point.
It will heat up quickly
a large amount of energy to increase its temperature.
only a small amount of energy to increase its temperature.
13
Which statement best explains why a confined gas exerts pressure?
The molecules are in random motion.
The molecules collide with each other.
The molecules collide with the container walls.
The molecules travel in straight lines
14
Who stated that equal volumes of gases at the same T and P contain equal numbers of molecules?
Boyle
Charles
Avogadro
Democritus
15
What phase change occurs during sublimation?
gas --> liquid
gas --> solid
solid--> gas
liquid --> gas
16
As a sample of an unreactive gas is compressed in a cylinder , the number of molecules
decreases
increases
remains the same
17
Which statement is part of the ideal gas concept?
An ideal gas has a fixed volume.
An ideal gas has no pressure.
Molecules of an ideal gas have elastic collisions.
Molecules of an ideal gas have strong intermolecular forces.
18
In studying gases, the acronym, STP stands for
standard temperature and pressure
sustained testing protocol
substance, temperature, and particles
standard time period
19
A gas that behaves as the kinetic molecular theory predicts under all conditions is called
an ideal gas
a perfect gas
a mobile gas
an electronic gas
20
Under which conditions do real gases behave least like an ideal gas?
high temperature and high pressure
low temperature and low pressure
high temperature and low pressure
low temperature and high pressure

Unit 2B Physical Behavior of Gases Flashcards | StudBud