+1-315-636-4485
+91 98151-74050 
This is an MCQ-based quiz on the topic of All the concepts of the Thermodynamics quiz.
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.
A gas is heated by supplying it with 250 kJ of energy; at the same time, it is compressed so that 500 kJ of work is done on the gas. Calculate the change in the internal energy of the gas.
250
750
-250
500
What term is used to describe the transfer of free energy from catabolic pathways to anabolic pathways?
Energy coupling
Cooperativity
Feedback regulation
Entropy
Which of the following is known to be a good conductor?
Iron
Wood
Air
Oil
The transfer of energy from one object to another because of difference in temperature is _____.
Kinetic energy
Heat
Specific heat
Combustion
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
Q.
The efficiency of this heat engine is
2.5
0.4
0.66
0.60
In a cyclic process, heat transfers are + 14.7 kJ, – 25.2 kJ, – 3.56 kJ and + 31.5 kJ. What is the net work in Kj for this cyclic process?
18
1744
17.44
174.4
The piston of an oil engine, of area 0.0045 m2, moves downwards 75 mm, drawing in 0.00028 m3 of fresh air from the atmosphere. The pressure in the cylinder is uniform during the process at 80 kPa, while the atmospheric pressure is 101.325 kPa, the difference being due to the flow resistance in the induction pipe and the inlet valve. Estimate the displacement work done in J by the air finally in the cylinder .
270
27
300
30
A Carnot engine working between 300 K and 600 K has a work output of 800 J per cycle. The amount of heat energy supplied to the engine from source per cycle is ___________
1200
1600
2400
3200
A slower particle has a lower energy than an identical, faster particle.
True
False
Q.
Refer to the picture of water sticking to a leaf; this is occurring because of:
Adhesion
Cohesion
A soap bubble of d mm diameter is observed inside a bucket of water. If the pressure inside the bubble is 0.075 N/cm2, what will be the value of d? (Take surface tension as 0.075 N/m)
0.4
0.8
1.6
4
Q.
Refer to the picture of water sticking to a leaf; this is occurring because of:
Adhesion
Cohesion
What is the ideal efficiency of a heat engine that has a hot reservoir at 500 K and a cold reservoir of 200 K?
60
50
40
55
How many laws of thermodynamics are there?
5
4
3
2
