Word Nerd
Jazzercise
The Law
Under Pressure
Maths
100

What is force/area and the SI unit to measure it?

Pressure, Pascal

100

What is the point of the kinetic molecular theory?

To define an ideal gas

100

Write the formula for Dalton's Law.

Ptot = P1 + P2 + ...

100

What is 137 C in K?

410 K

100

Solve: P1: 422 kPa
T1: 388 K
T2: 873.55 K
Wanted: P2 in kilopascals?

Correct answer is 950 kPa

200

What do we call the point where particles stop moving and what temperature is it?

Absolute 0. 0K

200

How are average kinetic energy and temperature related?

Directly proportional

200

Write the formula for Boyle's.

P1V1 = P2V2

200

What is 1520 mmHg in atm?

2 atm

200

Solve: P2: 106.74 kPa
V1: 35.2 L
V2: 2.58 L
Wanted: P1 in kilopascals?

Correct answer is 7.82 kPa

300

What does STP mean?

Standard Temperature and Pressure

300

How do gases exert pressure?

Colliding with objects

300

Which law states that when pressure is constant, temperature and volume are directly proportional?

Charles

300

What is 500. kPa in psi?

72.5 psi

300

Solve: P1: 36.974 PSI
P2: 26.88 PSI
V2: 34.9 L
T1: 671.9 K
T2: 396.2 K
Wanted: V1 in liters

Correct answer is 43.0 L

400

What do we use to measure atmospheric pressure?

Barometer

400

What is the formula for average kinetic energy?

=1/2*M*V2

400

Which law states that nothing is constant?

Combined Gas Law
400

A closed arm manometer moves the mercury inside 603 millimeters. What is that pressure in kPa?

80.4 kPa

400

Solve: T2: 368.6 K
V1: 13.236 L
V2: 92.54 L
Wanted: T1 in kelvins? 

Correct answer is 52.72 K

500

What are the 5 standard pressures?

760 mmHg 29.9 inHg 14.7 psi 1 atm 101.325 kPa

500
If the following gases are at the same temperature, rank them in order from lowest velocity to highest:


N2 H2 Ne H2O

N2 Ne H2O H2

500
Which law is used to compare the rates of diffusion between two gases at the same temperature?

Graham's

500

An open armed manometer has a difference in the mercury of 25 millimeters. If the mercury is lower on the open arm and the atmospheric pressure is 1.01 atm, what is the pressure of the gas in atm?

.98 atm

500

At a certain temperature, carbon dioxide effuses at a rate of 4.7 mol/min. At the same temperature what is the effusion rate of Chlorine gas?

3.7 mol/min