1st Law of Thermodynamics Check
Authored by Edwin De Ocampo
Chemistry
10th - 12th Grade
Used 16+ times
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10 questions
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1.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Which of the following is/are statements of the 1st Law of Thermodynamics?
Heat and work are forms of energy
Energy cannot be created nor destroyed, it can only be transformed.
Total energy is always zero.
2.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
If q = 1100 J and w = 300 J for a given system, what is the change in internal energy for the system?
+1400 J
+ 800 J
- 800 J
- 1400 J
3.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
What does stand for in the equation, ?
Change in Entropy
Change in Element
Change in Internal Energy
Change in Free Energy
4.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
A gas absorbs 500 J of heat and does 200 J of work. What is the change in internal energy of the gas?
+ 700 J
-700 J
- 300 J
+ 300 J
5.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
The internal energy of a system decreases by 40 J. What work is done by the gas if the system absorbs 150 J of heat?
- 110 J
+ 110 J
- 90 J
- 190 J
6.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
The internal energy of a gas increases by 50 J while the gas does 350 J of work. What can you say about the heat involved in the system?
The gas releases 300 J of heat.
The gas absorbs 300J of heat.
The gas absorbs 400 J of heat.
The system releases 400 J of heat.
7.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
If 600 J of heat is needed to increase the internal energy of a system from 15 J to 45 J. What amount of work will the system need to do on its surroundings?
630 J
570 J
660 J
540 J
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