Question 1
Question
Thermodynamics is the study of the flow and transformation of energy in the universe.
Question 2
Question
In the zeroth law how much net flow of heat flows between the objects?
Question 3
Question
What is a major characteristic of absolute zero and what is its measurement?
Answer
-
no thermal energy 0 K
-
no thermal energy 0 J
-
no thermal energy 0 D
Question 4
Question
celsius to fahrenheit is Tf=(9/5)Tc+31
Question 5
Question
The change of temperature in solids results in a change in their ________.
Question 6
Question
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
Question 7
Question
The change of temperature in liquids results in a change in their ________.
Question 8
Question
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
Question 9
Question
First Law of Thermodynamics (internal energy)
Answer
-
∆ U= ±Q + ±X
-
∆ U= ±Q + ±W
-
∆ U= ±Q + ±Z
Question 10
Question
Work done by the system is...
Answer
-
positive
-
negative
-
neutral
Question 11
Question
Work done on the system is...
Answer
-
positive
-
negative
-
neutral
Question 12
Question
What are the three ways by which heat can be transfer E? Check all that apply.
Answer
-
conduction
-
convection
-
radiation
Question 13
Question
The direct transfer of energy from molecule to molecule through molecular collisions is called _______.
Answer
-
condution
-
convection
-
radiation
Question 14
Question
When temperature increases, density decreases.
Question 15
Question
How many joules (E) does it take to raise 1kg of water by 1 degree?
Answer
-
4,194 J/ kg °C
-
4,394 J/ kg °C
-
4,184 J/ kg °C