MEDIUM
11th West Bengal Board
IMPORTANT
Earn 100

State and explain the fundamental principle of calorimetry.

Important Questions on Calorimetry and Change of State

EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 17 - Calorimetry and Change of State>EXERCISE>Q 3
In experiments by the method of mixtures in a calorimeter, we assume that the heat lost by the hot body is equal to the heat gained by the calorimeter and its contents. In order that the relation may hold, no heat must be allowed to enter or leave the calorimeter or be developed or absorbed inside. Will then, the relation hold if (i) the calorimeter contains water and the solid is sugar, (ii) the solid and the liquid in the calorimeter react chemically (iii) the calorimeter is kept on a table and is exposed to the air? Explain your answer briefly.
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 17 - Calorimetry and Change of State>EXERCISE>Q 4
Distinguish between sensible heat and latent heat. What do you mean by the statement that the latent heat of fusion of ice is 80 cal g-1?
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 17 - Calorimetry and Change of State>EXERCISE>Q 5
What is the effect of pressure on melting point? Explain with illustration. 
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 17 - Calorimetry and Change of State>EXERCISE>Q 6
What are the factors which determine the rate of evaporation? What is the difference between a gas and a vapour?
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 17 - Calorimetry and Change of State>EXERCISE>Q 7
What are evaporation and boiling? What are the factors which influence the rate of evaporation?
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 17 - Calorimetry and Change of State>EXERCISE>Q 8
What is boiling point? What is its relation with the pressure over the surface of boiling liquid?
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 17 - Calorimetry and Change of State>EXERCISE>Q 9
"A liquid can be made to boil at a much lower temperature than its boiling point."- describe an experiment in support of the statement.
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 17 - Calorimetry and Change of State>EXERCISE>Q 10
What are the factors on which the boiling point of a liquid depends? What are the laws of boiling?