Chemistry Chapter 11 Gases

Which of the following is not part of the Kinetic molecular theory of gases

There is very little empty space in a gas

According to the kinetic molecular theory of gases a gas can be compressed much more than a liquid or solid because

The particles of the gas are very far apart

The force of gas particles against the walls of a container is called

Pressure

Which measurement describes the pressure of gas

725 mmHg

The unit of one atmosphere used to describe the pressure of a gas is equal to

760mmHg

A 5.00-L tank contains helium gas at 1.50 atm what is the pressure of the gas in mmHg

1140 mmHg

In the autoclave is used to sterilize surgical equipment because

It allows water to boil at temperatures above 100�C

In response to Boyles law the pressure of a gas increases as the volume decreases because

The gas particles strike the walls of the container more often

The volume of the gas for the pressure of 1.2 atm increases from 1.0 L 4.0 L what is the final pressure of the gas assuming constant temperature

0.30 atm

In Charles law the volume of the gas

Decreases when the temperature decreases

What unit of temperature is used in gas law calculations

Kelvin

The temperature of the 500 mL sample of gas increases from 150 K to 350 K what is the final volume of the sample guess if the pressure in the containers kept constant

1170 mL

In Gay-Lussac's law The pressure of a gas increases due to an increase in temperature because

The molecules strike the walls of the container harder and more often

A gas contained in the steel tank has a pressure of 1.5 atm at a temperature of 320 K what will be the gas pressure when the temperature changes to 450 K

2.1 atm

When the combined gas law is rearrange to so for V2 the following is the correct expression V2=

P1 V1 T2/P2 T1

According to Avagadro's law, the volume of a gas

Is directly related to the number of moles at constant temperature and pressure

At STP temperature and pressure has the values of

273K and 760mmHg

The mathematical expression of the ideal gas law is

PV= nRT

A sample of argon at 300�C and 50 atm pressure is cooled in the same container to a temperature of 0�C what is the new pressure?

23.8 atm

A kilo Pascale is a unit of

Pressure

A container of variable volumes contains oxygen gas and the pressure of 550 kPa at 25�C what is the new pressure inside the container is the container is allowed to expand from an initial volume of 5.20 L to final volume of 7.25 L

394 kPa