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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?

एका वाक्यात 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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पाठ 25: Calorimetry - Short Answers [पृष्ठ ४६]

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

संबंधित प्रश्‍न

A child running a temperature of 101°F is given an antipyrin (i.e. a medicine that lowers fever) which causes an increase in the rate of evaporation of sweat from his body. If the fever is brought down to 98 °F in 20 min, what is the average rate of extra evaporation caused, by the drug? Assume the evaporation mechanism to be the only way by which heat is lost. The mass of the child is 30 kg. The specific heat of human body is approximately the same as that of water, and latent heat of evaporation of water at that temperature is about 580 cal g–1.


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.


50 g of metal piece at 27°C requires 2400 J of heat energy so as to attain a temperature of 327°C . Calculate the specific heat capacity of the metal.


A mass m1 of a substance of specific heat capacity c1 at temperature t1 is mixed with a mass m2 of other substance of specific heat capacity c2 at a lower temperature t2. Deduce the expression for the temperature t of the mixture. State the assumption made, if any.


45 g of water at 50°C in a beaker is cooled when 50 g of copper at 18° C is added to it. The contents are stirred till a final constant temperature is reached. Calculate this final temperature. The specific heat capacity of copper is 0.39 J g-1K-1 and that of water is 4.2 J g-1K-1. State the assumption used.


Explain the term boiling point ?


How much heat energy is released when 5.0 g of water at 20℃ changes into ice at 0℃? Take specific heat capacity of water = 4.2 J g-1 K-1, Specific latent heat of fusion of ice = 336 J g-1.


Name the radiations for which the green house gases are transparent ?


Name three fossil fuels that emit carbon dioxide into the atmosphere ?


How does green house effect help in keeping the temperature of earth’s surface suitable for living of human beings?


Give three reasons for the increase of green house gases.


State the effect of enhancement of green house effect.


What is meant by global warming?


What is carbon tax?


In Regnault's apparatus for measuring specific heat capacity of a solid, there is an inlet and an outlet in the steam chamber. The inlet is near the top and the outlet is near the bottom. Why is it better than the opposite choice where the inlet is near the bottom and the outlet is near the top?


The product of mass and specific heat is known as ..........


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Name the substance which has maximum specific heat capacity.


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?


If substances A and B are liquids then which one would be more useful in car radiators?
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Is it possible to condense the water formed, back to ice by adding ice at 0°C. Explain with reason.


Discuss how high specific heat capacity of water helps in formation of land and sea breeze.


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Numerical Problem.

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