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Latent Heat of fusion of ice is...

Latent Heat of fusion of ice is

A

80 `Cal//g`

B

90`Cal//g`

C

100`Cal//g`

D

110`Cal//g`

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Two identical blocks of ice move in opposite directions with equal speed and collide with each other. What will be the minimum speed required to make both the blocks melt completely, if the initial temperatures of the blocks were -8^@C each? (Specific heat of ice is 2100 Jkg^-1 K^-1 and Latent heat of fusion of ice is 3.36 xx 10^-5 Jkg^-1')

An ice box used for keeping cold eatables has a total wall area of 1 metre^2 and a wall thickness of 5.0 cm. The thermal conductivity of the ice box is K=0.01 (jou l e)/(metre)^@C . It is filled with ice at 0^@C along with eatables on a day when the temperature is 30^@C . The latent heat of fusion of ice is 334 x 10^3 joules/kg. The amount of ice melted in one day is (1 day = 86,400 seconds)

2 kg of ice at -20^@C is mixed with 5 kg of water at 20^@C in an insulating vessel having a negligible heat capacity. Calculate the final mass of water remaining in the container. It is given that the specific beats of water and ice are 1 (kcal)/(kg^@C) and 0.5 (kcal)/(kg^@C) while she latent heat of fusion of ice is 80 (kcal)/(kg)

Complete the analogy: Latent heat of fusion of ice : 80 cal/g :: steam:

What does the statement, 'latent heat of fusion for ice is 80 cal/g' mean?

A Carnot refrigerator absorbs heat from water at O °C and gives it to a room at 27 °C. When it converts 2 kg of water at 0°C into ice. at 0°C, the work.done is (Latent heat of fusion of ice= 333 x 10^3Jkg^(-1) )

M' kg of water at 't' ^@C is divided into two parts so that one part of mass 'm' kg when converted into ice 0^@C would release enough heat to vapourise the other part, then m/M is equal to [Specific heat of water = 1 calg^-1^@C^-1 Latent heat of fusion of ice= 80 calg^-1 Latent heat of steam = 540 cal g^-1 ]

30 gm of ice at 0^@C is placed in a calorimeter of mass 20 gm also at 0^@C . 100 gm of water at 90^@C is poured into the calorimeter. Find the final temperature. (specific heat of calorimeter = 0.4 cal//gm ^@C , Specific heat of water = 0.42 cal//gm ^@C Latent heat of fusion of ice = 80calg )

Find the heat required to convert 20 g of ice at 0⁰C into water at the same temperature . (Specific latent heat of fusion of ice = 80 cal/g)

How many calories of heat will be absorbed when 2kg of ice at 0⁰C melts ? (Specific latent heat of fusion of ice = 80 cal/g)

CHETANA PUBLICATION-THERMAL PROPERTIES OF MATTER-EXERCISE
  1. The boiling point of pure water is

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  2. Specific heat capacity is expressed as

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  3. Latent Heat of fusion of ice is

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  4. The temperature gradient of a rod of length 1 m is 60^@C//m. If the te...

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  5. The thermal conductivity of a metal plate is 80 w//mk. If the thicknes...

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  6. A wall of a room has dimensions of 6m xx 4m. It is 60 cm thick. Its th...

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  7. A body cools from 62^@C to 50^@C in 10 minutes. If the surrounding tem...

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  8. A body cools from 51^@C to 50.9^@C in 10 sec. If surrounding temperatu...

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  9. The cooling curve is represented by graph.......... A B C D

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  10. Gravitation plays a role in..... A. conduction B. convection C. rad...

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  11. Three different liduid A , B, C of equal masses have temperatures of ...

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  12. The MKS unit of thermal resistance is

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  13. A 10^@ temperature difference is maintained across the two faces of a ...

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  14. The dimension of thermal resistance are.............

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  15. The relation between alpha and beta is

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  16. The temperature and pressure at the triple point of water are

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  17. Iron sheet 50 cm X 20 cm is heated through 100^@C. If prop = 12 xx 10^...

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  18. What are the important characteristics of a thermometer?

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  19. Define thermal capacity?

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  20. State Newton's law of cooling?

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