10.1: Explain and Measure Gas Pressure; Relate Pressure Units

Question 1

A push or pull

Answer 1

Force

Question 2

Force divided by area

Answer 2

Pressure

Question 3

An instrument for measuring the pressure of a gas, especially the atmosphere

Answer 3

Barometer

Question 4

A unit of pressure that is the pressure of the atmosphere on a “normal” day at sea level; the envelope of air surrounding Earth

Answer 4

Atmosphere, atm

Question 5

The pressure of the atmosphere

Answer 5

Atmospheric pressure

Question 6

Atmospheric pressure is (higher/lower) at higher elevations

Answer 6

Lower

Question 7

Atmospheric pressure is (higher/lower) at lower elevations

Answer 7

Higher

Question 8

SI unit of pressure

Answer 8

Pascal

Question 9

A device similar to a barometer that can be used to measure the pressure of a gas trapped in a container

Answer 9

Manometer

Question 10

When do you use a closed-ended manometer

Answer 10

When gas pressures are significantly lower than atmospheric pressure

Question 11

Increasing temperature will lead to a (higher/lower) pressure measured for the gas.

Answer 11

Higher

Question 12

Adding more moles of gas will lead to a (higher/lower) pressure measured for the gas

Answer 12

Higher

Question 13

Transferring the same amount of gas to a smaller container will lead to a (higher/lower) pressure measure for the gas

Answer 13

Lower

Question 14

A (rising/falling) barometer means an increase in atmospheric pressure

Answer 14

Rising

Question 15

A (rising/falling) barometer means a decrease in atmospheric pressure.

Answer 15

Falling

Question 16

What is the difference between a manometer and a barometer?

Answer 16

A barometer measures atmospheric pressure, while a manometer measures the pressure of a confined gas sample.