+1-315-636-4485
+91 98151-74050 
This is an MCQ-based quiz on the topic of THERMODYNAMICS QUIZ: Second law of thermodynamics.
This set of MCQs helps you brush up on the important physics topics and prepare you to dive into skill practice and expand your knowledge.
In a heat engine, what is the relationship between Qh, Qc and W
Q + Qh, + Qc = 0
W = Qh - Qc
W = Qc - Qh
W = Qh + Qc
What is true about entropy
It must stay constant in the universe
It must decrease in the universe
If it decreases in one place, it MUST increase elsewhere
If it increases in one place, it MUST decrease elsewhere
What is Entropy a measurement of?
Disorder in a system
Average particular energy in a system
Change in energy in a chemical reaction
Energy of a system
How is it possible that heat can spontaneously go from a cold object to a hot object?
By having one way super conductive material between them
Cold objects can never give thermal energy to hot objects
Work can be done by the system to make this happen
Work can be done to the system to make this happen
A refrigerator is
Heat engine
Air cooler
Motor
Heat engine working in reverse order
Q.
Which engine is in the figure?
Diesel
Carnot
Petrol
Steam
Q.
In the figure,it is the PV diagram for ______ engine
Carnot
Petrol
Diesel
Refrigerator
Q.
The efficiency of this heat engine is
2.5
0.4
0.66
0.60
