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My Chem & Physics > Quiz 1 > Flashcards

Quiz 1 Flashcards

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1
Q

Equation for Pressure

A

Pressure = Force/Area

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2
Q

Gauge Pressure

A

P.total = P.gauge + P.atm

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3
Q

What does higher elevation do to the needs of gas

A

There is less gas availability

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4
Q

Equation for Work

A

W = Force x Distance

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5
Q

Law stating energy cannot be created or destroyed

A

Law of conservation of energy

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6
Q

an older unit of energy that is still used in chemistry

A

calorie

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7
Q

The food Calorie is what and what

A

1000 calories
or
kilocalerie

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8
Q

Law that states A/B are same temps, B/C are same temps therefore A/C must be same temp

A

Zeroth Law of thermodynamics

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9
Q

When energy flows into the system

A

Endothermic (Q > 0)

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10
Q

When energy flows out of the system

A

Exothermic (Q < 0)

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11
Q

When energy is transferred to an object from a higher temp body + work done on object equals?

A

Change in internal energy

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12
Q

First law of thermodynamics

A

Change in internal energy

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13
Q

When heat spontaneously flows from a hot body to a cold body when in thermal contact

A

Second law of thermodynamics

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14
Q

What law of physics is a warm blanket on a patient?

A

Second law of thermodynamics

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15
Q

Law stating it is not possible to lower a temperature of an object to absolute zero

A

Third law of thermodynamcis

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16
Q

What is a process not a product

A

Heat

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17
Q

what is an energy that can be transferred

A

Heat

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18
Q

The amount of heat needed to raise the temp of 1g of an object 1 degree C

A

Specific Heat

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19
Q

Mass x specific heat

A

Heat Capacity

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20
Q

Factors that affect the rate of change of heat of an object (4)

A
  • Heat Capacity
  • Temp Gradient
  • Surface Area
  • Forced Convection
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21
Q

Heat transfer of 40%

A

Radiation

22
Q

Heat transfer of 30%

A

convection

23
Q

Heat transfer of 20%

A

conduction

24
Q

Heat transfer of 10%

A

Evaporation

25
Q

Heat transfer by the movement of liquid or gas

A

Convection

26
Q

Heat transfer by direct contact of molecules in a higher temp with molecules in a lower temp

A

Conduction

27
Q

Heat transfer by energy emitted from an object

A

Radiation

28
Q

Heat loss through respiration

A

Evaporation

29
Q

what law states the greater the radius, the greater the surface tension of a cylinder?

A

Laplaces Law

30
Q

increasing the radius of a sphere does what to surface tension, and what law?

A

Decreases surface tension

LaPlaces Law

31
Q

if the temperature of a liquid increases, what does that do to the vapor pressure?

A

Also increases

32
Q

What is it called when there is a state of balance b/w vaporization and condensation?

A

Dynamic equilibrium

33
Q

The tendency of a liquid to evaporate

A

Volatility

34
Q

Does a liquid with a High volatility have a higher or lower vapor pressure?

A

Higher

35
Q

Does a liquid with a High volatility have a higher or lower boiling point?

A

Lower

36
Q

What does the Aline utilize as a principle?

A

Pascals Principle

37
Q

The pressure applied to a confined fluid increases the pressure throughout the fluid by the same amount

A

Pascals Principle

38
Q

The rate of change of velocity

A

Acceleration

39
Q

Law states that the pressure of a fluid varies inversely with speed, an increase in speed producing a decrease in pressure and vice versa

A

Bernoulli’s Law

40
Q

The faster a fluid flows, the less pressure it exerts (Principle)

A

Bernoulli’s principle

41
Q

Measure of fluid’s resistance to flow

A

Viscosity

42
Q

determined that the laminar flow rate of an incompressible fluid along a pipe is proportional to the fourth power of the pipe’s radius

A

Poiseulle’s Law

43
Q

The flow rate for a fluid through a tube depends on:

A
  • Radius
  • Length
  • Pressure difference
  • Viscosity
44
Q

Prediction of when flow will become turbulent

A

Reynold’s Number

45
Q

Reynolds number is inversely proportionate to:

A

Viscosity

46
Q

Vapor pressure of desflurane

A

669 mmHg

47
Q

Vapor pressure of Sevoflurane

A

157 mmHg

48
Q

Vapor pressure of Isoflurane

A

239 mmHg

49
Q

The energy required to push electrons through a material

A

Resistance

50
Q

Ohms law equation

A

V = IR (Electrical potential = Current x resistance)

My Chem & Physics (5 decks)

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