Thermodynamics

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Thermodynamics

_______ is energy in transit

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Temperature

heat

Work

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A positive value for heat indicates that heat is

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added to the system by its surroundings

subtracted to the system by its surroundings

added to the surrounding by the system

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The heat added to or removed from a substance to produce a change in its temperature is called

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latent heat of fusion

latent heat of vaporizatuion

sensible heat

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When latent heat is added,

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temperature increases

temperature decreases

no temperature change occurs

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This is the amount of heat added or removed to change phase between solid and liquid

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sensible heat

latent heat of fusion

latent heat of vaporization

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The ratio of the heat (Q) added to or removed from a substance to the change in temperature (ΔT) produced is called the

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sensible heat

heat capacity

specific heat

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____________ of a substance per unit mass is called the specific heat (Cp) of the substance

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heat capacity

temperature

latent heat

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____________ is a measure of degree of hotness or coldness of a body.

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Temperature

heat

Specific heat

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The absolute minimum temperature of any object in the universe is __________

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-273.15 degree F

-273.15 degree C

-273.15 K

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Absolute Zero is

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0 degree C

O degree F

0 K

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The _________ scale of temperature uses the freezing point of water and the boiling point of water at standard pressure as its defining points.

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Celsius

Fahrenheit

Kelvin

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Which formula is used to convert celsius to Fahrenheit

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F = 1.8 × C + 273.5

F = 1.8 × C + 32

F = C + 273.5

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Change -4°F to degrees C

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Change 383 K to degrees C.

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A thermistor is an electronic component where the change in _________ with temperature is used to measure temperature

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pressure

resistance

radiation

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The pressure of fixed masses of gas in a fixed volume depends on its _______________.

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temperature

resistance

radiations

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A temperature difference across the junctions results in a small __________ which is measured on the voltmeter

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resistance

current

voltage

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Thermometer must be sensitive to ________ changes of temperature

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small

large

noticeable

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The most suitable instrument for measuring temperatures in a gas turbine aircraft engine

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thermister

thermocouple

gas pressure thermometer

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The change in the ______ of mercury, due to change in temperature, results in a proportional change in length of the mercury column

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pressure

volume

density

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