WorksheetsGases (Kinetics + Equilibrium)
Total questions: 25
Worksheet time: 23mins
Name
Class
Date
1.
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
2.
Whose law states that as pressure goes up, volume goes down?
a)
Charles
b)
Boyle
c)
Cole's Law
d)
Avogadro
3.
What is 50 C in Kelvin?
a)
223
b)
323
c)
100
d)
50
4.
How do you convert Celsius to Kelvin?
a)
Add 273
b)
Subtract 273
c)
You can't convert those
d)
They are the same thing
5.
How are pressure and volume related?
a)
Directly
b)
Inversely
c)
They aren't related
6.
What law combines all 3 factors (pressure, temperature, and volume)
a)
Combined Gas Law
b)
Charle's Law
c)
Boyle's Law
d)
Avagadros Gas Law
7.
A sample of a gas has a volume of 852 mL at 298 K. What temperature is necessary for the gas to have a volume of 945 mL?
a)
57.5⁰C
b)
57.5 K
c)
331 K
d)
330 ⁰C
8.
If a nitrogen gas occupies a volume of 500. ml at a pressure of 0.971atm. What volume will the gas occupy at a pressure of 1.50 atm, assuming the temperature remains constant?
a)
324 ml
b)
728 ml
c)
772 ml
d)
None of the above
9.
If the pressure exerted by a gas at 25 degrees C in a volume of 0.044 L is 3.81 atm, how many moles of gas are present?
a)
.002766 mole
b)
.0069 mol
c)
2.766 mol
d)
9.887 mol
10.
PV=nRT
a)
Charles Law
b)
Boyle's Law
c)
Combined Gas Law
d)
Ideal Gas Law
11.
The rate of a chemical reaction is NOT affected by which of the following:
a)
temperature
b)
concentration
c)
particle size (surface area)
d)
All of these affect reaction rates
12.
The rate of a reaction increases as temperature__________________.
a)
Decreases
b)
Increases
c)
Stays the Same
13.
Products will form faster if____________
a)
the particle size of the reactants are larger.
b)
temperature is decreased.
c)
concentration of the reactants are increased.
d)
the reaction is not stirred.
14.
What conditions that must be met in order for a chemical reaction to take place?
a)
Collisions with the proper orientation
b)
Sufficient activation energy
c)
Appropriate coefficient of friction
d)
Both collisions with the proper orientation and sufficient energy
15.
For the reaction...
SO2 + O2 <−> SO3
If the concentration of SO2 is increased, the equilibrium of the reaction will shift ___________.
SO2 + O2 <−> SO3
If the concentration of SO2 is increased, the equilibrium of the reaction will shift ___________.
a)
left
b)
right
c)
left and right
d)
neither left nor right
16.
2A + 3B <----> 2AB
The forward reaction points towards the __________.
The forward reaction points towards the __________.
a)
left
b)
right
c)
up
d)
down
17.
At what time (in seconds) is equilibrium established?
a)
0 seconds
b)
1 second
c)
5 seconds
d)
10 seconds
18.
At what time the reaction reached equilibrium?
a)
t1
b)
t2
c)
t3
d)
t4
19.
The kinetic theory states
a)
Particles won't move if you don't apply energy to it.
b)
Particles only move in liquids and gases.
c)
Particles are always in motion.
d)
At the same temperature the object that has the most mass heats quicker.
20.
The molecules of a gas are in constant and random motion.
a)
TRUE
b)
FALSE
c)
DEPENDS UPON THE KIND OF MOLECULE
21.
When is a gas most ideal
a)
high temperature
b)
low pressure
c)
large volume
d)
ALL of these
22.
What are the measurments for STP
a)
273 Celsius, 760 atm
b)
273 Kelvin, 760 kPa
c)
273 Kelvin, 1 atm
d)
273 Celsius, 1 mmHg
23.
What is LeChatelier's Principle?
a)
Stresses do not shift a reaction
b)
Equilibrium does not exist
c)
A stress only shifts a reaction to the right
d)
A reaction at equilibrium will adjust to relieve a stress
24.
What is the proper Keq for the following reaction?
2 NO(g) + O2(g) ⇌2 NO2(g)
a)
Keq = [NO2]2 / [NO]2[O2]
b)
Keq = [NO]2[O2] / [NO2]2
c)
Keq = [NO]2[O2][NO2]2
d)
Keq = 2[NO][O2] / 2[NO2]
25.
What is the ideal gas law?
a)
P1V1 = P2V2
b)
P1/T1 = P2/T2
c)
V1/T1 = V2/T2
d)
PV = nRT
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