MTG NEET Physics
0.1 m^3 of water at 80 degree C is mixed with 0.3 m^3 of water at 60^0 C. The final temperature of the mixture is
19
Nov
0.1 m^3 of water at 80 degree C is mixed with 0.3 m^3 of water at 60^0 C. The final temperature of the mixture is 0.1 m^3 of water at 80 degree C is mixed with 0.3 m^3 of water at 60^0 C. The final temperature of the mixture is November 19, 2020 Category: Chapter [...]
Certain amount of heat is given to 100 g of copper to increase its temperature by 21 ∘C. if the same amount of heat is given to 50 g of water, then the rise in its temperature is (specific heat capacity of copper = 400 J kg^−1K^−1 and that for water = 4200J kg^−1 K^−1
19
Nov
Certain amount of heat is given to 100 g of copper to increase its temperature by 21 ∘C. if the same amount of heat is given to 50 g of water, then the rise in its temperature is (specific heat capacity of copper = 400 J kg^−1K^−1 and that for water = 4200J kg^−1 K^−1 [...]
The temperature of equal masses of three different liquids A, B and C are 12∘C, 19∘C and 28∘C respectively. The temperature when A and B are mixed is 16∘C and when B and C are mixed is 23∘C. The temperature when A and C are mixed is
19
Nov
The temperature of equal masses of three different liquids A, B and C are 12∘C, 19∘C and 28∘C respectively. The temperature when A and B are mixed is 16∘C and when B and C are mixed is 23∘C. The temperature when A and C are mixed is 19∘C and 28∘C respectively. The temperature when A [...]
The latent heat of vaporisation of a substance is always
19
Nov
The latent heat of vaporisation of a substance is always The latent heat of vaporisation of a substance is always November 19, 2020 Category: Chapter 16 - Calorimetry and Heat Transfer , MTG NEET Physics , Part 1 ,
Rays from the sun are focused by a lens of diameter 5 cm on to a block of ice and 10 g of ice is melted in 20 min. Therefore the heat from the sun reaching the earth per min per square centimeter is (Latent heat of ice L = 80 cal g^−1 )
19
Nov
Rays from the sun are focused by a lens of diameter 5 cm on to a block of ice and 10 g of ice is melted in 20 min. Therefore the heat from the sun reaching the earth per min per square centimeter is (Latent heat of ice L = 80 cal g^−1 ) Thermal [...]
A copper block of mass 2.5kg is heated in a furnace to a temperature of 500∘C and then placed on a large ice block. What is the maximum amount (approx.) of ice that can melt? (Specific heat copper =0.39J/g^-1 K^-1. Heat of fusion of water =335J/g).
19
Nov
A copper block of mass 2.5kg is heated in a furnace to a temperature of 500∘C and then placed on a large ice block. What is the maximum amount (approx.) of ice that can melt? (Specific heat copper =0.39J/g^-1 K^-1. Heat of fusion of water =335J/g). Thermal capacity of 40 g of aluminum (s = [...]
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 ,