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What is the Specific Heat Capacity of Melting Ice?

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प्रश्न

What is the specific heat capacity of melting ice?

एक पंक्ति में उत्तर
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उत्तर

The specific heat capacity of melting ice is 0.50 cal/g-oC or 2093 J/kg-K.

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अध्याय 25: Calorimetry - Short Answers [पृष्ठ ४६]

APPEARS IN

एचसी वर्मा Concepts of Physics Volume 1 and 2 [English]
अध्याय 25 Calorimetry
Short Answers | Q 7.1 | पृष्ठ ४६

संबंधित प्रश्न

You have a choice of three metals A, B, and C, of specific heat capacities 900 Jkg-1 °C-1, 380 Jkg-1 °C-1 and 460 Jkg-1 °C-1 respectively, to make a calorimeter. Which material will you select? Justify your answer.


Calculate the mass of ice required to lower the temperature of 300 g of water 40°C to water at 0°C.

(Specific latent heat of ice = 336 J/g, the Specific heat capacity of water = 4.2J/g°C)


What do you understand by the following statements:

The specific heat capacity of lead is 130 Jkg-1K-1.


During the phase change does the average kinetic energy of the molecules of the substance increase?


The temperature of 170 g of water at 50°C is lowered to 5°C by adding a certain amount of ice to it. Find the mass of ice added.

Given: Specific heat capacity of water = 4200 J kg-1 °C-1 and specific latent heat of ice = 336000 J kg-1.


Write the expression for the heat energy Q received by the substance when m kg of substance of specific heat capacity c Jkg-1 k-1 is heated through Δt° C.


Water property of water makes it an effective coolant?


Explain the term boiling point ?


Name two green house gases ?


How will you prove experimentally that different substances have different specific heat capacities?


Why do the farmers fill their fields with water on a cold winter night?

Name the substance that has the maximum value of specific heat.

What change in heat energy occurs when lead at its melting point
solidifies without change in the temperature?


State, with reason, which of the two, boiling water or steam both at 100°C will produce more severe burns.


Why do bottled soft drinks get cooled, more quickly, by the ice cubes than by the iced water?

A liquid X has specific heat capacity higher than the liquid Y. Which liquid is useful as heat reservoir to keep juice bottles without freezing?


Write the approximate values of the specific latent heat of vaporization of steam.


Explain, why is water sprayed on roads in evening in hot summer?


Explain, why temperature in hot summer, falls sharply after a sharp shower?


Explain, why do sandy soils, get heated up quickly as compared to wet soils?


Specific heat capacity of substance A is 3.8 J g-1 K-1whereas the specific heat capacity of substance B is 0.4 J g-1 K-1. Which of the two is a good conductor of heat? How is one led to this conclusion?


A certain amount of heat Q will warm 1 g of material X by 3°C and 1 g of material Y by 4°C. Which material has a higher specific heat capacity?


If, in a central heating system, steam enters a radiation pipe at 100°C and water leaves the radiation pipe at 100°C, can this radiation pipe heat a room? Give an explanation for your answer.


Why are athletes advised to put on extra clothes after competing on event?


Will the value of specific heat’capacity and specific latent heat of a substance change if the scale is °F instead of °C?


A piece of ice is heated at a constant rate. The variation of temperature with heat input is shown in the graph below:

(i) What are represented by AB and CD?
(ii) What conclusion can you draw regarding the 110°c nature of ice from the above graph?


A. hot solid of mass 60 g at 100°C is placed in 150 g of water at 20° C. The final steady temperature recorded is 25°C. Calculate the specific heat capacity of the solid. [Specific heat capacity of water = 4200 J kg-1 °C-1]


A vessel of negligible heat*capacity contains 40g of ice in it at 0°C, 8g of steam at 100°C is passed into the ice to melt it. Find the final temperature of the contents of the vessel.
(Specific latent heat of vaporization of steam = 2268 J/g, specific latent heat of fusion of ice = 336 J/f and specific heat capacity of water = 4.2 J/g°C)


An electric immersion heater is rated 1250 W. Calculate the time in which it will heat 20 kg of water at 5°C to 65°C.


When a uniform rod is heated, which of the following quantity of the rod will increase


Which of the substances P, Q, or R has the lowest specific heat? The temperature v/s time graph is shown ______.


The molar specific heats of an ideal gas at constant pressure and constant volume are denoted by Cp and Cv respectively. If `gamma = "C"_"p"/"C"_"v"` and R is the universal gas constant, then Cp is equal to ______.


A piece of lead weighing 500 g gives out 1200 calories of heat when it is cooled from 100° C to 20° C. Find its specific heat.


An office room contains about 4000 moles of air. The change in the internal energy of this much air when it is cooled from 34° C to 19° C at a constant pressure of 1.0 atm is (Use `gamma_"air"` = 1.4 and Universal gas constant = 8.314 J / mol K) ____________.


On supplying 100 µC of charge to a conductor, its potential rises by 5 V then capacity of the conductor is ______.


Water has the lowest specific heat capacity.


A geyser heats water flowing at a rate of 2.0 kg per minute from 30°C to 70°C. If the geyser operates on a gas burner, the rate of combustion of fuel will be ______ g min-1.

[Heat of combustion = 8 × 103 Jg-1 Specific heat of water = 4.2 Jg-1°C-1]


Thermal capacities of substances A and B are same. If mass of A is more than mass of B then:

Which substance will have more specific heat capacity?


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