Zusammenfassung der Ressource
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Thermodynamics is the study of the flow and transformation of energy in the universe.
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In the zeroth law how much net flow of heat flows between the objects?
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What is a major characteristic of absolute zero and what is its measurement?
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no thermal energy 0 K
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no thermal energy 0 J
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no thermal energy 0 D
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celsius to fahrenheit is Tf=(9/5)Tc+31
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The change of temperature in solids results in a change in their ________.
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The equation for a change in length of a solid due to a ∆T is... ∆L=(α)(L)(∆T)
α = coeff. of linear expansion (specific to material)
L is the original length
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The change of temperature in liquids results in a change in their ________.
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The equation for a change in volume of a liquid due to a ∆T is... ∆V=(β)(V)(∆ T)
where β = 3α
β = coefficient of volume expansion (in K-¹ or °C-¹)
V is original volume
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First Law of Thermodynamics (internal energy)
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∆ U= ±Q + ±X
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∆ U= ±Q + ±W
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∆ U= ±Q + ±Z
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Work done by the system is...
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positive
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negative
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neutral
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Work done on the system is...
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positive
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negative
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neutral
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What are the three ways by which heat can be transfer E? Check all that apply.
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conduction
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convection
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radiation
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The direct transfer of energy from molecule to molecule through molecular collisions is called _______.
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condution
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convection
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radiation
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When temperature increases, density decreases.
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How many joules (E) does it take to raise 1kg of water by 1 degree?
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4,194 J/ kg °C
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4,394 J/ kg °C
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4,184 J/ kg °C