S CHAND'S ICSE PHYSICS BOOK 2>Chapter 11 - Calorimetry>QUESTIONS>Q 34

MEDIUM

10th ICSE

IMPORTANT

Earn 100

Draw a labelled diagram of the apparatus you would use to determine the specific latent heat of vaporisation of steam by the method of mixture. State two precautions you would take while performing the experiment with the apparatus.

Important Questions on Calorimetry

MEDIUM

10th ICSE

IMPORTANT

S CHAND'S ICSE PHYSICS BOOK 2>Chapter 11 - Calorimetry>QUESTIONS>Q 35

In a central heating system, steam at

100 ° C

enters the radiator pipe from one end and water at same temperature leaves the other end. How is then the building heated?

MEDIUM

10th ICSE

IMPORTANT

S CHAND'S ICSE PHYSICS BOOK 2>Chapter 11 - Calorimetry>QUESTIONS>Q 36

2 kg of ice melts when a jet of steam at l 00°C is passed through a hole drilled in a block of ice. What mass of steam was used? [Latent heat of ice= 336 J g-1• Latent heat of steam = 2268 J g-1• Specific heat capacity of water=4.2Jg-1°C-1.]

MEDIUM

10th ICSE

IMPORTANT

S CHAND'S ICSE PHYSICS BOOK 2>Chapter 11 - Calorimetry>QUESTIONS>Q 37

10 g

of ice at

0 ° C

absorbed

5460 J

of heat to melt and change into the water at

50 ° C

. Calculate latent heat of fusion of ice.[Specific heat capacity of water

= 4.2 J g^{- 1} ° C^{- 1}

].

MEDIUM

10th ICSE

IMPORTANT

S CHAND'S ICSE PHYSICS BOOK 2>Chapter 11 - Calorimetry>QUESTIONS>Q 38

Explain why bottled soft drinks are more effectively cooled by cubes of ice than by ice water.

MEDIUM

10th ICSE

IMPORTANT

S CHAND'S ICSE PHYSICS BOOK 2>Chapter 11 - Calorimetry>QUESTIONS>Q 39

The graph represents a cooling curve for a substance being cooled from higher temperature to a lower temperature.What is the boiling point of the substance?

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EASY

10th ICSE

IMPORTANT

S CHAND'S ICSE PHYSICS BOOK 2>Chapter 11 - Calorimetry>QUESTIONS>Q 39

The graph represents a cooling curve for a substance being cooled from higher temperature to a lower temperature.What happens in the region DE. Why is the region DE shorter than the region BC?

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