HARD
11th West Bengal Board
IMPORTANT
Earn 100

What is the difference between a heat engine and a refrigerator ?

Important Questions on Thermodynamics

MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 19 - Thermodynamics>EXERCISE>Q 28
Can a room be cooled by opening the door of a refrigerator ?
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 19 - Thermodynamics>EXERCISE>Q 28
Define entropy of a thermodynamic system. 
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 19 - Thermodynamics>EXERCISE>Q 28
Is entropy of a system a conserved quantity?
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 19 - Thermodynamics>EXERCISE>Q 28
State second law of thermodynamics in terms of entropy.
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 19 - Thermodynamics>EXERCISE>Q 28
Work is fully convertible to heat. Is the reverse true ?
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 19 - Thermodynamics>EXERCISE>Q 28
Why reversible adiabatic process is called an isentropic process.
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 19 - Thermodynamics>EXERCISE>Q 28
Draw temperature - entropy T-S diagram for a Carnot cycle.
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 19 - Thermodynamics>EXERCISE>Q 28
How entropy is related to randomness of a system ?