HARD
11th West Bengal Board
IMPORTANT
Earn 100

The temperature and relative humidity of air in a room are 27°C and 50% respectively. Calculate the mass of vapour that should be added to the air in the room to saturate it. Given that volume of the room is 64 m3 and saturated vapour at 27°C is 3600 Pa.

Important Questions on Calorimetry and Change of State

HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 17 - Calorimetry and Change of State>EXERCISE>Q 20
The temperature of a room is 27°C and relative humidity is 60%. Find the fraction of the mass of water vapour contained in the room that will condense, if temperature of the room drops to 10°C. SVP at 27°C 25°C  and 10°C are 30 mm, 26.8 mm and 9 mmof Hg.
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 17 - Calorimetry and Change of State>EXERCISE>Q 20
The temperature of a room is 27°C and relative humidity is 60%. Find the fraction of the mass of water vapour contained in the room that will condense, if temperature of the room drops to 10°C. SVP at 27°C 25°C  and 10°C are 30 mm, 26.8 mm and 9 mmof Hg.
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 17 - Calorimetry and Change of State>EXERCISE>Q 21
Air at 30°C and 90% relative humidity is drawn into air conditioning unit and cooled to 20°C, the relative humidity being reduced to 50%. How many gm of water vapour be removed by the air conditioner from a cubic metre of air? Neglect the change of volume of air. (Given, density of saturated vapour in air at 30°C is 30 gm/m3 and at 20°C is 17gm/m3.
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 17 - Calorimetry and Change of State>EXERCISE>Q 1
Which of the following pairs represent units of the same physical quantity?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 17 - Calorimetry and Change of State>EXERCISE>Q 2
Which of the following pair of physical quantites may be represented by the same unit?
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
If heat is supplied to a solid, its temperature
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
When a hot and a cold liquid are mixed, the temperature of the mixture
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 17 - Calorimetry and Change of State>EXERCISE>Q 5
Ideal calorimetric liquid should have