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20 Cards in this Set
- Front
- Back
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Specific Heat Capacity |
Is a physical property of matter, defined as the amount of heat to be supplied to a given mass of material to produce a unit change in its temperature |
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Thermo comes in two different types? |
Extensive and intensive |
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Extensive |
Depends on mass, depends on how much material you have. It includes mass, volume and energy. |
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Intensive properties |
Does not depend on mass, temperature and pressure are examples of intensive properties. No matter how much material you have, the temperature and pressure remains the same. |
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Mass |
Is a measure of the amount of matter in an object. |
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Weight |
Units(Newton/Pound-Force) Force exerted on an object by gravity. |
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Pressure |
A normal force acting over an area. Such as liquid and gases. |
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Pressure |
A normal force acting over an area. Such as liquid and gases. |
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What is the pressure of the atmosphere, at sea level? |
101KPa 14.6488 IbF (Psia) |
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Absolute pressure is defined as? |
Zero pressure point, perfect vacuum |
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Absolute pressure is defined as? |
Zero pressure point, perfect vacuum. Which absolute pressure of a gas or liquid is less than the atmospheric pressure. |
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How much is the standard atmospheric pressure? |
101.325Kpa 14.7IbF (Psia) |
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How do you calculate gauge pressure (Pgauge)? |
Pgage = Pabs - Patm |
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How do you calculate vacuum pressure (Pvac)? |
Pvac = Patm - Pabs |
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Temperatures! Celsius? Fahrenheit? Kelvin? Ranking? |
•C Fahrenheit, water freezes 32F boils 212F Kelvin, freezing point 273.15K Ranking, freezing point 459.67R |
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What does the ideal gas law depend on? |
It depends on ratios between pressure, temperature, and volume. Starting point at absolute zero using kelvin and Rankine. |
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What units should you use when there is temperature difference? |
Celsius and Fahrenheit You can not use Celsius and Fahrenheit scales when using temperature ratios. When in doubt, use kelvin and Fahrenheit. |
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Convert Celsius to Fahrenheit |
F = 1.8(C) +32 |
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Celsius to Kelvin |
C = K - 273.15 |
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Fahrenheit to Rankine |
F = R - 459.67 |
