हिंदी

What is meant by specific heat capacity?

Advertisements
Advertisements

प्रश्न

What is meant by specific heat capacity? 

लघु उत्तरीय
Advertisements

उत्तर

Specific heat capacity of a body can be defined as the amount of heat energy required to raise the temperature of the unit mass of that body by 1°C (or 1 K). 

It is given as:

s  = `(Delta Q)/(DeltaT xx m)`

where,

ΔQ = Amount of heat energy supplied

ΔT = Rise in temperature

m = Mass of the body

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 5: Heat - Exercises [पृष्ठ ७१]

APPEARS IN

बालभारती Science and Technology Part 1 [English] Standard 10 Maharashtra State Board
अध्याय 5 Heat
Exercises | Q 3.1 | पृष्ठ ७१

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.


A copper vessel of mass 100 g contains 150 g of water at 50°C. How much ice is needed to cool it to 5°C?

Given: Specific heat capacity of copper = 0.4 Jg-1 °C-1

The Specific heat capacity of water = 4.2 Jg-1 °C-1

The Specific latent heat of fusion ice = 336 Jg-1


Write the approximate value of specific heat capacity of water in S.I. unit.


Describe a method to determine the specific heat capacity of a solid, like a piece of copper ?


Solve the following problems:

Equal heat is given to two objects A and B of mass 1 g. Temperature of A increases by 3°C and B by 5°C. Which object has more specific heat? And by what factor?


650 J of heat is required to raise the temp. of 0.25 kg of lead from 15°C to 35°C. Calculate the Sp. heat capacity of lead.


What is heat? What is the S. I. unit of heat?


Write the approximate values of the specific latent heat of fusion of ice.


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


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.


Describe a method to determine the specific heat capacity of a solid (say, a piece of copper).


Water falls from a height of 50 m. Calculate the rise in the temperature of water when it strikes the bottom.
(g = 10 ms-2; Specific heat capacity of water = 4200 J / kg°C)


Calculate the amount of heat released when 5.0 g of water at 20°C is changed into ice at 0°C.
(Specific heat capacity of water = 4.2 J/g°C
Specific latent heat of fusion of ice = 336 J/g)


Express the change in internal energy in terms of molar specific heat capacity.


For a gas, `"R"/"C"_"v"=0.4`, where R Is universal gas constant and Cv is the molar specific heat at constant volume. The gas is made up of molecules, which are ______


Two metals A and B have specific heat capacities in the ratio 2:3. If they are supplied same amount of heat then

Which metal piece will have greater mass if the rise in temperature is the same for both metals?


Two cylinders of equal height and radius are made of copper and aluminum. Which of them conducts heat faster?


The difference between the two molar specific heats of gas is 9000 J/kg K. If the ratio of the two specific heats is 1.5, calculate the two molar specific heats.


Two blocks P and Q of different metals having their mass in the ratio 2 : 1 are given same amount of heat. Their temperature rises by same amount. Compare their specific heat capacities.


Give one example where high specific heat capacity of water is used as heat reservoir.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×