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प्रश्न
- Define Calorimetry.
- Name the material used for making a Calorimeter.
- Why is a Calorimeter made up of thin sheets of the above material answered in ii.
उत्तर
- Calorimetry is the science associated with determining the changes in energy of a system by measuring the heat exchanged with the surroundings.
- Copper, wood
- To avoid any heat, utilise making the temperature of the sheet going up.
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संबंधित प्रश्न
(a) Calculate the heat capacity of a copper vessel of mass 150g if the specific heat capacity of copper is `410 J kg^-1 K^-1`
(b) How much heat energy will be required to increase the temperature of the vessel in part (a) from 25°C to 35°C?
A mass of 200 g of mercury at 100°C is poured into water at 20°C. If the final temperature of the mixture is 25°C, find the mass of water. (Sp. heat cap. of mercury is 140 J/kgK).
Fill in the following blank using suitable word:
The normal temperature of a human body is .............
Fill in the following blank using suitable word:
Ice at o0C is colder than ...........at o0C.
40g of ice at 0°C is used to bring down the temperature of a certain mass of water at 60°C to 10°C. Find the mass of water used.
[Specific heat capacity of water = 4200 J kg-1 °C-1]
[Specific latent heat of fusion of ice = 336 × 103 J kg-1]
Find the final temperature when a mass of 80g of water at 100°C is mixed with a mass of 40g of water at 25°C.
