Questão 1
Questão
Thermodynamics is the study of the flow and transformation of energy in the universe.
Questão 2
Questão
In the zeroth law how much net flow of heat flows between the objects?
Questão 3
Questão
What is a major characteristic of absolute zero and what is its measurement?
Responda
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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
Questão 4
Questão
celsius to fahrenheit is Tf=(9/5)Tc+31
Questão 5
Questão
The change of temperature in solids results in a change in their ________.
Questão 6
Questão
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
Questão 7
Questão
The change of temperature in liquids results in a change in their ________.
Questão 8
Questão
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
Questão 9
Questão
First Law of Thermodynamics (internal energy)
Responda
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∆ U= ±Q + ±X
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∆ U= ±Q + ±W
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∆ U= ±Q + ±Z
Questão 10
Questão
Work done by the system is...
Responda
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positive
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negative
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neutral
Questão 11
Questão
Work done on the system is...
Responda
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positive
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negative
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neutral
Questão 12
Questão
What are the three ways by which heat can be transfer E? Check all that apply.
Responda
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conduction
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convection
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radiation
Questão 13
Questão
The direct transfer of energy from molecule to molecule through molecular collisions is called _______.
Responda
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condution
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convection
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radiation
Questão 14
Questão
When temperature increases, density decreases.
Questão 15
Questão
How many joules (E) does it take to raise 1kg of water by 1 degree?
Responda
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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