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Explain the Statement; “The Specific Latent Heat of Vaporization of Wafer is 2260 × 103 J/Kg”. - Physics

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प्रश्न

Explain the statement; “The specific latent heat of vaporization of wafer is 2260 × 103 J/kg”.

टिप्पणी लिखिए

उत्तर

It means that at 100°C, 2260 × 103 J of heat energy is absorbed by 1 kg of water to convert it into steam at 100°C, or 1 kg of steam at 100°C liberates 2260 × 103 J of heat energy in converting into 1 kg of water at 100°C.

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अध्याय 10: Specific Heat Capacity and Latent Heat - Short Answers

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आईसीएसई Physics [English] Class 10
अध्याय 10 Specific Heat Capacity and Latent Heat
Short Answers | Q 65

संबंधित प्रश्न

State two factors upon which the rate of emission of thermions depends.


1 g ice of 0℃ melts to form 1 g water at 0℃. State whether the latent heat is absorbed or given out by ice.


The S.I. unit of specific latent heat is ______.


The specific latent heat of fusion of water is ______.


A molten metal of mass 150 g is kept at its melting point 800℃. When it is allowed to freeze at the same temperature, it gives out 75,000 J of heat energy.

  1. What is the specific latent heat of the metal?
  2. If the specific heat capacity of metal is 200 J kg-1 K-1, how much additional heat energy will the metal give out in cooling to -50℃?

During transformation of liquid phase to solid phase, the latent heat is ______.


Explain the following temperature vs time graph.


What is meant by latent heat? How will the state of matter transform if latent heat is given off?


Define specific latent heat of vaporization of a substance.


Derive an expression for the amount of heat given out or taken up, when its temperature falls or rises by t°C.


What observation you will record and how will you determine the specific latent heat of fusion of ice?


When ice is converted into water : constant temperature : : before the water evaporates : _______


Specific latent heat of vaporisation : J/kg : : specific heat : _______


Find the odd one out and give its explanation.


Define boiling point of a liquid.


600 g of copper at 50°C is mixed with lOOOg water at 20°C. Find the final temperature of the mixture. The specific heat capacity of copper is 0.4 Jg-1°C-1 and that of water is 4.2 Jg-1°C-1


Calculate the amount of heat required to convert 200g of ice at 0°C into the water at 0°C Specific latent heat of fusion of ice = 336 Jg-1


20 g of ice at 0°C absorbs 10,920 J of heat energy to melt and change to water at 50°C. Calculate the specific latent heat of fusion of ice. Specific heat capacity of water is 4200 J kg-1 K-1.


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