EASY
11th Odisha Board
IMPORTANT
Earn 100

In P-V diagram which has a greater slope-isothermal or adiabatic?

Important Questions on Thermodynamics

MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 18
Express 30°C in Kelvin Scale.
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 19
A piece of lead is hammered. Does the internal energy of the lead increase? Does the heat enter the lead from outside?
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 20
A hot piece of iron is immersed in cold water. Has the internal energy of water increased? Has any work been done by the iron?
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 21
Why are brake drums of a car heated?
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 22
An ideal gas is compressed isothermally, will its internal energy increase or decrease?
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 23
Write down the expression for efficiency of carnot engine.
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 24
Why a sink is necessary for operation of a heat engine?
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 1
Distinguish between a refrigerator and a heat engine.