Second Law Of Thermodynamic MCQ Level – 1 (Part - 2) - Physics MCQ

The correct answer is: rectangle

An irreversible processes increases the entropy of the universe. However, because entropy is a state function, the change in entropy of the system is same whether the process is reversible or irreversible.
All the natural processes are irreversible. This irreversibility results from the fact that if a thermodynamic system, which is any system of  sufficient complexity, of interacting molecules is brought from one thermodynamic state to another, the configuration or arrangement of the atoms and molecules in the system will change in a which that is not easily predictable. During this transformation, there will be a certain amount of heat energy loss or dissipation due to intermolecular friction and collision, energy  that will not be recoverable if the process is reversed.
The correct answer is: Second law of thermodynamics

Q₁ = W + Q₂
Hence   Q₁ > Q₂.
The correct answer is: more than that absorbed from the contents

The above statement comes from Kelvin-Plank’s statement of second law of thermodynamics.
The correct answer is: Second law of thermodynamics

The creation of a temperature of 8000K by transferring heat from a colder body (sun at 6000K) by means of a lens is a violation of second law of thermodynamics.
The correct answer is: Second law

 The total area under top side of rectangle is total heat absorbed. The area under bottom side is total heat released. The area inside the rectangle is total heat absorbed- total heat released = total work done in a cycle.”

From second law thermodynamics, 
The correct answer is: positive or zero

For a reversible cycle process just like the Carnot engine, 
This is because any reversible cycle can be represented as a series of miniature Carnot cycle.
The correct answer is: always equal to zero

Since 
The work temperature plays an important role in the efficiency of the engine.
The correct answer is: depends upon working temperature