MEDIUM
11th West Bengal Board
IMPORTANT
Earn 100

Why a Carnot engine cannot be realised in practice ?

Important Questions on Thermodynamics

HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 19 - Thermodynamics>EXERCISE>Q 28
State Carnot's theorem.
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 19 - Thermodynamics>EXERCISE>Q 28
What is the usefulness of a Carnot engine if it cannot be realised in practice?
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 19 - Thermodynamics>EXERCISE>Q 28
Oceans contain enormous thermal energies. Can this energy be utilised to run a heat engine ?
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 19 - Thermodynamics>EXERCISE>Q 28
What is the difference between a heat engine and a refrigerator ?
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.