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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Write the name. Products obtained when sugar is heated. - Science and Technology 1

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प्रश्न

Write the name.

Products obtained when sugar is heated.

एक शब्द/वाक्यांश उत्तर

उत्तर

Products obtained when sugar is heated- Carbon and water vapour

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 5: Heat - Write the name

संबंधित प्रश्‍न

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.


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℃?

A refrigerator converts 100g of water at 20℃ to ice at – 10℃ in 73.5 min. Calculate the average rate of heat extraction in watt. The specific heat capacity of water is 4.2 J kg-1 K-1, specific latent heat of ice is 336 J g-1 and the specific heat capacity of ice is 2.1 J kg-1 K-1.


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


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


When a liquid is getting converted into solid, the latent heat is  ………………………………


Explain the following temperature vs time graph.


What do you mean by the statement?
'The specific latent heat capacity of fusion of ice is 336 J per g'?


What do you understand by the latent heat of vaporization?

Define specific latent heat of vaporization of a substance.


Explain why water is used in hot water bottles for fomentation and also as a universal coolant.


Explain the meaning of the term latent heat. State its S. I. unit.


What happens to the heat supplied to a substance when the heat supplied causes no change in the temperature of the substance?


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


Steam at 100°C is passed over 1000 g of ice at 0°C. After some time, 600 g of ice at 0°C is left and 450 g of water at 0°C is formed. Calculate the specific latent heat of vaporization of steam (Given: specific heat capacity of water = 4200 J/kg°C, specific latent heat of fusion of ice = 336,000 J/kg.)


Find the odd one out and give its explanation.


Match the columns.

Column A Column B
1) Specific latent heat of fusion a) Air saturated with vapour
2) Specific latent heat of vaporisation b) Solid converts into liquid
3) Dew point temperature c) liquid converts into gas

Write scientific reason.

Use a pressure cooker to cook food in cold air.


The amount of heat energy required to melt a given mass of a substance at its melting point without any rise in its temperature is called as the ______.


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