Chapter 10 Physical Characteristics of Gases

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According to the kinetic-molecular theory particles of matter...

Are in Constant Motion

According to the kinetic-molecular theory, gases condense into liquids because of...

Forces between molecules

The kinetic-molecular theory explains the behavior of...

Solids liquids and Gas

Whitch process can be explained by the kinetic-molecular theory?

Condensation

According to the kinetic-molecular theory, which substances are made of particles?

all matter

The kinetic-molecular theory explains the properties of solid, liquids, and gases in terms of energy of the particles and...

the forces that act between the particles

According to the kinetic-molecular theory, particles of matter are in motion in...

solid liquids and gases

An ideal gas is an imaginary gas...

that conforms to all of the assumptions of the kinetic theory

Unlike in an ideal gas, in a real gas...

the particles exert attractive forces on eachother

A Real gas...

does not obey all the assumptions of the kinetic-molecular theory

If two moving steel balls collide, their total energy after the collision is the same as before. This is an example of...

an elastic collision

Which is NOT an assumption of the kinetic-molecular theory?

When individual particles collied, energy is transfered

According to the kinetic-molecular theory , what is the most significant difference between gases and liquids?

the distance between the particles

According to the kinetic-molecular theory, particles of gas...

neither attract or repel each other but collied

Which is an example of gas diffusion?

the odor of perfume spreading throughout a room

By which process do gases take the shape of their container?

expansion

If a gas with an odor is released in a room, it quickly can be detected across the room because it...

diffuses

Which substance has the lowest density ?

H20(g)

The density of a substance undergoes the greatest change when the substance changes from a..

liquid to gas

According to the kinetic-molecular theory, how does a gas expand?

Its particles move greater distance

Diffusion between two gases occur most rapidly if the gases are at a...

high temperature and the molecules are small

Which is an example of effusion?

air slowly escaping from a pinhole in a tire

What happens to the volume of a gas during compression?

The volume decreases

Under which conditions do real gases most resemble ideal gases?

low pressure and high temperature

When does a real gas behave like an ideal gas?

When the particles are far apart

Why dosent a gas at a low temperature behave like an ideal gas?

The kinetic energy of the particles is too low

Which gases behave most like an ideal gas?

gases composed of monatomic, non polar molecules

As a real gas deviates from ideal gas behavior, the particles...

experience stronger attractive forces

The behavior of a gas under very high pressure is likely to...

deviate from ideal gas behavior

Pressure is the force per unit of...

Surface Area

What is the SI unit of force?

Newton

If force is held constant as surface area decreses, pressure...

Increases

What does the constant bombardment of gas molecules against the inside walls of a container produce?

Pressure

What is the definition of pressure?

Pressure= Force / Area

Why does a can collapse when a vacume pump removes air from the can?

The unbalenced outside force from atmospheric pressure crushes the can

What instrument measures atomspheric pressure?

barometer

What instrument measures the pressure of enclosed gas?

manometer

A pressure of 745 mm Hg equals...

745 Torr

Convert the pressure 0.75 atm to mm Hg...

570 mm Hg

Convert the pressure .840 atm to mm Hg.

638 mm Hg

Convert the pressure .600 atm to mm Hg

456 mm Hg

Convert the pressure 2.50 atm to kPa

253 kPa

Convert the pressure 1.30 atm to kPa

132 kPa

Standard temperature is exacly

0, C

Standard pressure is the pressure exerted by a column of mercury exacly...

760 mm High

Standard pressure is exacly

1 atm

If the height of mercury in a barometer at 0*C is less than 760 mm Hg, then...

a atmospheric pressure is less than standard atmospheric pressure

If the pressure and temperature of a gas are held constant and some gas is added to the container or some is allowed to escape, a change in which of the following can be observed?

Volume

If the temperature of a fixed quantity and volume of gas changes, what also changes?

Pressure

To observe the effects of changing pressure on the volume of a gas, factors that must be kept constant are the gas's temperature and...

quantity

To study the relationship between the temperature and volume of a gas , which factor must be held constant?

Pressure

If the temperature of a fixed quantity of gas decreses and the pressure remains unchanged,

Its volume decreases

Suppose the temperature of the air in a bolloon is increased. if the pressure remains constant, what quantity must change?

Volume

Two gases have the same temperature but diffrent pressures, The kinetic-molecular theory does NOT predict that...

Both gases have the same densities

Why does the air pressure inside the tires of a car increase when the car is driven?

The air particles inside the tire increases their speed because their temperature rises

If the temperature of a container of gas remains constant, how could the pressure of the gas increase?

The number of gas molecules in the container increases

The gas pressure inside a container decreases when...

the number of molecules is increased and the temperature is increased

If the temperature remains constant, V and P represent the original volume and pressure , and V1 and P1 represent the new volume and pressure, what is the mathematical expression for Boyels Law?

V=VP/P

Pressure and volume changes at a constant temperature can be calculated using...

Boyels law

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