Gases + Atmospheric Chemistry

Question 1

Pressure is the ________ per unit area

Answer 1

force

Question 2

The common unit for pressue is….

Answer 2

pascal (Pa)

Question 3

Temperature is the measure of __________ in a substance.

Answer 3

average kinetic energy of the entities

Question 4

At a constant pressure,______ and _______ are directly proportional.

Answer 4

temp and volume; Charles’ Law

Question 5

What happens to volume when temp increases and why?

Answer 5

Increase in volume = more kinetic energy = more speed = more collisions

Question 6

What happens to volume when temp decreases and why?

Answer 6

Decrease in volume = less kinetic energy = less speed = less collisions

Question 7

At a constant temp, ______ and ______ are inversely proportional.

Answer 7

volume; pressure; Boyles’ Law

Question 8

At a constant volume, _______ and _______ are directly proportional.

Answer 8

temp; pressure; Gay-Lussac’s Law

Question 9

Why does an increase in temperature mean an increase in pressure?

Answer 9

more kinetic energy = more collisions w/ walls

Question 10

Why does a decrease in temperature mean a decrease in pressure?

Answer 10

less kinetic energy = less collisions with walls

Question 11

At a constant temperature, moles and ________ are directly proportional.

Answer 11

volume