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Gas Laws

Total questions: 21

Worksheet time: 39mins

Name
Class
Date
1.
If the temperature of a gas increase, the pressure...
a)
Decreases
b)
Increases
c)
Does not change
2.
If a balloon is cooled what will happen to the volume?
a)
Volume will increase
b)
Volume will decrease
c)
Volume will not change
3.
Which container will have lower pressure?
a)
left
b)
right
c)
they both have the same pressure
4.
What is standard temperature?
a)
0K
b)
0oC
c)
173 K
d)
173.15 K
5.
Which of the following is NOT a value for standard pressure?
a)
101.3 kPa
b)
760 mm Hg
c)
1 atm
d)
1 torr
6.

What describes the motion of a Gas Molecule?

a)

Molecules are far apart

b)

Move in constant, random motion

c)

It will travel in a straight path

d)

All of the above

7.
Charles' Law States...
a)
As Pressure goes up volume goes down
b)
As Pressure goes up temperature goes up
c)
As Volume goes up temperature goes up 
d)
As Pressure goes down volume goes down 
8.

If a hairspray can is heated, what can be expected of the pressure of the gas inside the can?

a)

The pressure will increase

b)

The pressure will decrease

c)

The pressure will remain constant

d)

The pressure will equalize

9.
In order to convert to Kelvin, you add ______ to the Celsius measurement.
a)
372
b)
273
c)
237
d)
732
10.
What is 50 °C in Kelvin?
a)
223
b)
323
c)
100
d)
50
11.

Pressure is

a)

defined as the mass that an object exerts when at rest.

b)

not a measurable in gases.

c)

defined as the number of moles of substance divided by the mass of the substance.

d)

created by the force of the gas particles impacting the walls of the container.

12.

Absolute zero is

a)

0 K

b)

where there is no molecular movement

c)

the coldest temperature possible

d)

all of these

13.

A student inflates a balloon with helium then places it in the freezer. The student should expect

a)

the balloon's volume to increase

b)

the balloon's volume to decrease

c)

the balloon's moles to increase

d)

the balloon's moles to decrease

14.
Which of the following would increase the (gas) pressure of a system?
a)
Increase the Temperature
b)
Pump in more gas
c)
Decrease the volume
d)
All of these
15.
The following graph shows ____ relationship. 
a)
Direct
b)
Inverse
16.
Boyle's law :  The pressure and volume of a gas show a _____ relationship. 
a)
Inverse 
b)
Direct 
17.

When a sample of liquid is freezing , its phase energy

a)

increases

b)

decreases

c)

stays the same

d)

reduces to zero

18.
How many nitrogen atoms does NH3 have?
a)
1
b)
2
c)
3
d)
4
19.
Bob puts 200 grams of ice into a pitcher with 900 grams of water. He gets distracted and comes back later to find that the ice has melted in the water. How many grams of water does Bob now have in the pitcher?
a)
200 g
b)
700 g
c)
1,100 g
20.
24 g of magnesium reacts with 38 g of fluorine to produce _____ g magnesium fluoride
a)
62 
b)
38
c)
24
d)
14
21.

A gas that has a pressure of 2 atm and a volume of 10 L. What would be the new volume if the pressure was changed to 4 atm?

a)

2 L

b)

4 L

c)

8 L

d)

5 L

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