Formulas

Question 0

What is the formula for “Power”?

Answer 0

Power=(Force*Distance)/Time

Question 1

What is the formula Ohm’s Law? Note, express it two ways.

Answer 1

E=IR
Or
R=E/I

Question 2

What is the formula for “Force”?

Answer 2

Force=Mass*Acceleration

Question 3

How many Watts equals 1 horsepower?

Answer 3

745.7 Watts=1HP

Question 4

What does “Approved for Hazardous Location” mean?

Answer 4

Equipment must be approved for the class, division, and group of location.

Question 5

What is “homeostasis”?

Answer 5

Homeostasis is a state of physiological equilibrium produced by a balance of functions and chemical composition within an organism.

Question 6

What is the volume that one mole of an ideal gas or vapor occupies at 0 degrees Celsius?

Answer 6

22.4 liters.

Question 7

What is a curie?

Answer 7

A curie is the amount of any radioactive isotope that will produce 3.7x10 to the 10th power of nuclear disintegrations.

Question 8

What electromagnetic radiation has the shortest wavelength?

Answer 8

Gamma rays.

Question 9

What is the atomic energy level rule?

Answer 9

Energy Level=2*(the ring number squared)

Question 10

1 g-mole of an ideal gas at 0 degrees Celsius and 760 mm Hg occupies:

Answer 10

22.4 liters

Question 11

The molar volume of an ideal gas at STP is how many liters?

Answer 11

22.4 liters

Question 12

Standard Temperature and Pressure (STP) is what?

Answer 12

0 degrees Celsius and 1 atmosphere

Question 13

What is the gas constant when using liter-mm Hg/g-mol-K?

Answer 13

62.4

Question 14

What is the formula for the Ideal Gas Law?

.

Answer 14

PV=nRT
P=Pressure
V=Volume
n=number of mass-moles of gas
R=the appropriate gas constant
T=Temperature

Question 15

What is “critical pressure”?

Answer 15

The critical pressure of a substance is that pressure at which no liquid-phase transition occurs for any temperature.

Question 16

To determine the kinetic energy of a rotating body, what is the appropriate formula?

Answer 16

E=1/2 I w^2

Question 17

The two most common techniques employed for the control of bio agents are:

Answer 17

Disinfection and sterilization

Question 18

Byssinosis is an occupational disease related to the exposure of :

Answer 18

Cotton fiber dust

Question 19

The products produced when water is electrolyzed are:

Answer 19

H2 and O2

Question 20

The particle whose mass is closest to that of an electron is:

Answer 20

Positron

Question 21

Atoms of an element with different atomic weights are called:

Answer 21

Isotopes

Question 22

The atomic number refers to:

Answer 22

The number of protons

Question 23

What is the density of water?

Answer 23

8.33 pounds per gallon

Question 24

One mole of a gas at STP occupies how many liters?

Answer 24

22.4 liters.

Question 25

When using STP, and atmospheres, "R", the constant, equals what?

Answer 25

.0821

Question 26

What is the formula for determining Ppm?

Answer 26

(mg/M^3*24.45)/MW | "(Micrograms per cubic meter times 24.45) divided by molecular weight"

Question 27

What is the conversion formula for Fahrenheit to Celsius?

Answer 27

Celsius = Degrees Fahrenheit - 32 / 1.8000

Question 28

How many grams per ounce?

Answer 28

28.35 grams per ounce.

Question 29

How many micrograms per gram?

Answer 29

1,000 micrograms per gram.

Question 30

How many liters per cubic foot?

Answer 30

28.317 liters per cubic foot.

Question 31

What law describes the equilibrium between molecules of gas in the atmosphere and molecules of the same gas in solution?

Answer 31

Henry's Law.

Question 32

What is the "octanol-water partition coefficient sometimes used for?

Answer 32

To approximate the degree to which a chemical, when released, will tend to migrate (i.e. "partition") between soil and water.

Question 33

What does "Kow" stand for?

Answer 33

The octanol-water partition coefficient

Question 34

What does "Koc" stand for?

Answer 34

The soil-sorption coefficient.

Question 35

What does "Fick's Law" describe?

Answer 35

Fick's Law of diffusion describes the relationship between molecular weight, diffusion co-efficient, and the rate of diffusion.

Question 36

What does Henry's Law cover?

Answer 36

Henry's Law covers solubilities of gases in water.

Question 37

What does "Beer's Law" cover?

Answer 37

Beer's Law covers the absorption of EM radiation and its relation to concentration.

Question 38

What does "Boyle's Law" address?

Answer 38

Boyle's Law addresses the relationship of pressure and volume at constant temperature.

Question 39

``` Which of the following is not an organic compound? A. Alkanes B. Alkenes C. Carboxylic acids D. Carbon Dioxide ```

Answer 39

Carbon dioxide since it is an oxidized form of carbon.

Question 40

Toxic effects can be broken down into what four major classifications?

Answer 40

Acute, chronic, narcosis, discomfort

Question 41

One horsepower equals how many foot-pounds?

Answer 41

550 ft lbs

Question 42

One horsepower equals how many watts?

Answer 42

745.7 Watts or 746 Watts

Question 43

What is a formula for "power"?

Answer 43

Power = Force*Distance/Time

Question 44

Approved for hazardous location means what?

Answer 44

Equipment must be approved for the class, division, and group of location.

Question 45

What is the formula for Force with regard to determining mechanical advantage?

Answer 45

F=W/MA | F(work) = W(weight)/MA(mechanical advantage)

Question 46

What is the conversion factor for Celsius to Fahrenheit?

Answer 46

Fahrenheit = 1.8 * (degrees Celsius) + 32

Question 47

What is the conversion from Fahrenheit to Celsius?

Answer 47

Celsius = .556 (Degrees Fahrenheit - 32)

Question 48

What is the formula for kinetic energy?

Answer 48

KE = .5 * m * v^2

Question 49

What is Critical Pressure?

Answer 49

The critical pressure of a substance is the pressure required to liquify a gas at its critical temperature.

Question 50

What is critical temperature?

Answer 50

The critical temperature of a substance is the temperature at and above which vapor of the substance cannot be liquified, no matter how much pressure is applied.