Formulas Flashcards

0
Q

What is the formula for “Power”?

A

Power=(Force*Distance)/Time

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1
Q

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

A

E=IR
Or
R=E/I

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2
Q

What is the formula for “Force”?

A

Force=Mass*Acceleration

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3
Q

How many Watts equals 1 horsepower?

A

745.7 Watts=1HP

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4
Q

What does “Approved for Hazardous Location” mean?

A

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

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5
Q

What is “homeostasis”?

A

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

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6
Q

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

A

22.4 liters.

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7
Q

What is a curie?

A

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

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8
Q

What electromagnetic radiation has the shortest wavelength?

A

Gamma rays.

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9
Q

What is the atomic energy level rule?

A

Energy Level=2*(the ring number squared)

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10
Q

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

A

22.4 liters

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11
Q

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

A

22.4 liters

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12
Q

Standard Temperature and Pressure (STP) is what?

A

0 degrees Celsius and 1 atmosphere

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13
Q

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

A

62.4

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14
Q

What is the formula for the Ideal Gas Law?

.

A
PV=nRT
P=Pressure
V=Volume
n=number of mass-moles of gas
R=the appropriate gas constant
T=Temperature
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15
Q

What is “critical pressure”?

A

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

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16
Q

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

A

E=1/2 I w^2

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17
Q

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

A

Disinfection and sterilization

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18
Q

Byssinosis is an occupational disease related to the exposure of :

A

Cotton fiber dust

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19
Q

The products produced when water is electrolyzed are:

A

H2 and O2

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20
Q

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

A

Positron

21
Q

Atoms of an element with different atomic weights are called:

A

Isotopes

22
Q

The atomic number refers to:

A

The number of protons

23
Q

What is the density of water?

A

8.33 pounds per gallon

24
Q

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

A

22.4 liters.

25
Q

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

A

.0821

26
Q

What is the formula for determining Ppm?

A

(mg/M^3*24.45)/MW

“(Micrograms per cubic meter times 24.45) divided by molecular weight”

27
Q

What is the conversion formula for Fahrenheit to Celsius?

A

Celsius = Degrees Fahrenheit - 32 / 1.8000

28
Q

How many grams per ounce?

A

28.35 grams per ounce.

29
Q

How many micrograms per gram?

A

1,000 micrograms per gram.

30
Q

How many liters per cubic foot?

A

28.317 liters per cubic foot.

31
Q

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

A

Henry’s Law.

32
Q

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

A

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

33
Q

What does “Kow” stand for?

A

The octanol-water partition coefficient

34
Q

What does “Koc” stand for?

A

The soil-sorption coefficient.

35
Q

What does “Fick’s Law” describe?

A

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

36
Q

What does Henry’s Law cover?

A

Henry’s Law covers solubilities of gases in water.

37
Q

What does “Beer’s Law” cover?

A

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

38
Q

What does “Boyle’s Law” address?

A

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

39
Q
Which of the following is not an organic compound?
A. Alkanes
B. Alkenes
C. Carboxylic acids
D. Carbon Dioxide
A

Carbon dioxide since it is an oxidized form of carbon.

40
Q

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

A

Acute, chronic, narcosis, discomfort

41
Q

One horsepower equals how many foot-pounds?

A

550 ft lbs

42
Q

One horsepower equals how many watts?

A

745.7 Watts or 746 Watts

43
Q

What is a formula for “power”?

A

Power = Force*Distance/Time

44
Q

Approved for hazardous location means what?

A

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

45
Q

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

A

F=W/MA

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

46
Q

What is the conversion factor for Celsius to Fahrenheit?

A

Fahrenheit = 1.8 * (degrees Celsius) + 32

47
Q

What is the conversion from Fahrenheit to Celsius?

A

Celsius = .556 (Degrees Fahrenheit - 32)

48
Q

What is the formula for kinetic energy?

A

KE = .5 * m * v^2

49
Q

What is Critical Pressure?

A

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

50
Q

What is critical temperature?

A

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.