Part 1
A block of ice at -I0∘C is slowly heated and converted to steam at 100∘C. Which of the following curves represents the phenomena qualitatively?
19
Nov
A block of ice at -I0∘C is slowly heated and converted to steam at 100∘C. Which of the following curves represents the phenomena qualitatively? A block of ice at -I0∘C is slowly heated and converted to steam at 100∘C. Which of the following curves represents the phenomena qualitatively? November 19, 2020 Category: Chapter 16 - [...]
22320 cal heat is supplied to 100g of ice at 0°C. If the latent heat of fusion of ice is 80 cal g^−1 and latent heat of vaporization of water is 540 cal g^−1, the final amount of water thus obtained and its temperature respectively are
19
Nov
22320 cal heat is supplied to 100g of ice at 0°C. If the latent heat of fusion of ice is 80 cal g^−1 and latent heat of vaporization of water is 540 cal g^−1, the final amount of water thus obtained and its temperature respectively are 22320 cal heat is supplied to 100g of ice [...]
200 g of a solid ball at 20^o C is dropped in an equal amount of water at 80^o C. The resulting temperature is 60^o C. This means that specific heat of solid is :
19
Nov
200 g of a solid ball at 20^o C is dropped in an equal amount of water at 80^o C. The resulting temperature is 60^o C. This means that specific heat of solid is : 200 g of a solid ball at 20^o C is dropped in an equal amount of water at 80^o C. [...]
An ice cube of mass 0.1kg at 0∘C is placed in an isolated container which is at 227∘C. The specific heat S of the container varies with temperature T according to the empirical relation S=A+BT, where A = 100cal/kg −K and B = 2 × 10^−2cal/kg−K^2. If the final temperature of the container is 27∘C, determine the mass of the container. (Latent heat of fusion of water =8 × 10^4 cal/kg, Specific heat of water = 10^3 cal/kg−K).
19
Nov
An ice cube of mass 0.1kg at 0∘C is placed in an isolated container which is at 227∘C. The specific heat S of the container varies with temperature T according to the empirical relation S=A+BT, where A = 100cal/kg −K and B = 2 × 10^−2cal/kg−K^2. If the final temperature of the container is 27∘C, [...]
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An ice cube of mass 0.1kg at 0∘C is placed in an isolated container which is at 227∘C. The specific heat S of the container varies with temperature T according to the empirical relation S=A+BT ,
determine the mass of the container. (Latent heat of fusion of water =8 × 10^4 cal/kg ,
Specific heat of water = 10^3 cal/kg−K). ,
where A = 100cal/kg −K and B = 2 × 10^−2cal/kg−K^2. If the final temperature of the container is 27∘C ,
How many grams of ice at −14∘C are needed to cool 200 gram of water from 25∘C to 10∘C? Take specific heat of ice =0.5 calg^−1∘C^−1 and latant heat of fusion of ice = 80 calg^−1.
19
Nov
How many grams of ice at −14∘C are needed to cool 200 gram of water from 25∘C to 10∘C? Take specific heat of ice =0.5 calg^−1∘C^−1 and latant heat of fusion of ice = 80 calg^−1. How many grams of ice at −14∘C are needed to cool 200 gram of water from 25∘C to 10∘C? [...]
How much steam at 100˚C will just melt 3200 g of ice at -10˚C? (Specific heat of ice = 0.5 cal/g˚C, specific heat of water = 1 cal/g˚C, latent of fusion of ice = 80 cal/g, and latent heat of vaporisation of water = 540 cal/g)
19
Nov
How much steam at 100˚C will just melt 3200 g of ice at -10˚C? (Specific heat of ice = 0.5 cal/g˚C, specific heat of water = 1 cal/g˚C, latent of fusion of ice = 80 cal/g, and latent heat of vaporisation of water = 540 cal/g) and latent heat of vaporisation of water = 540 [...]
The temperature of 100 g of water is to be raised from 24°C to 90°C by adding steam to it. The mass of the steam required for this purpose is
19
Nov
The temperature of 100 g of water is to be raised from 24°C to 90°C by adding steam to it. The mass of the steam required for this purpose is The temperature of 100 g of water is to be raised from 24°C to 90°C by adding steam to it. The mass of the steam [...]
If the specific heat of a gas at constant volume is 3/2R, then the value of γ will be
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Nov
If the specific heat of a gas at constant volume is 3/2R, then the value of γ will be If the specific heat of a gas at constant volume is 3/2R then the value of γ will be November 19, 2020 Category: Chapter 16 - Calorimetry and Heat Transfer , MTG NEET Physics , Part [...]
Which one of the following substances has the largest specific heat?
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Nov
Which one of the following substances has the largest specific heat? Which one of the following substances has the largest specific heat? November 19, 2020 Category: Chapter 16 - Calorimetry and Heat Transfer , MTG NEET Physics , Part 1 ,
A 10 watt electric heater is used to heat a container filled with 0.5 kg of water. It is found that the temperature of water and the container rises by 3 K in 15 minutes. The container is then emptied, dried and filled with 2 kg of oil. The same heater now raises the temperature of container-oil system by 2 K in 20 minutes. Assuming that there is no heat loss in the process and the specific heat of water as 4200Jkg^−1K^−1, the specific heat of oil in the same unit is equal to
19
Nov
A 10 watt electric heater is used to heat a container filled with 0.5 kg of water. It is found that the temperature of water and the container rises by 3 K in 15 minutes. The container is then emptied, dried and filled with 2 kg of oil. The same heater now raises the temperature [...]