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A Calorimeter is Kept in a Wooden Box to Insulate It Thermally from the Surroundings. Why is It Necessary? - Physics

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प्रश्न

A calorimeter is kept in a wooden box to insulate it thermally from the surroundings. Why is it necessary?

टीपा लिहा

उत्तर

A calorimeter is kept in a wooden box to insulate it thermally from the surroundings because in order to determine the specific heat capacity, the total heat transferred must be known. Heat must not be exchanged with the surroundings, otherwise the principle of calorimeter would not stand valid.

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Calorimetry
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Calorimetry - Short Answers [पृष्ठ ४६]

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एचसी वर्मा Concepts of Physics Vol. 2 [English] Class 11 and 12
पाठ 3 Calorimetry
Short Answers | Q 3 | पृष्ठ ४६

संबंधित प्रश्‍न

The calorie is defined as 1 cal = 4.186 joule. Why not as 1 cal = 4 J to make the conversions easy?


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Refer to the plot of temperature versus time (figure) showing the changes in the state of ice on heating (not to scale).

  1. The region AB represents ice and water in thermal equilibrium.
  2. At B water starts boiling.
  3. At C all the water gets converted into steam.
  4. C to D represents water and steam in equilibrium at boiling point.

On an X temperature scale, water freezes at -125°X and boils at 375°X. On a Y temperature scale, water freezes at -70°Y and boils at -30°Y. The value of temperature on X scale is ______ on which value of temperature on y Scale becomes 50° Y.


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(Specific heat of copper = 0.39 Jg-1 c-1, latent heat of 0 fusion of water = 335 Jg-1)


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540 g of ice at 0°C is mixed with 540 g of water at 80°C. The final temperature of the mixture will be ______.


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