मराठी

It is generally cold after a hail-storm then during and before the hail storm. Give reason.

Advertisements
Advertisements

प्रश्न

It is generally cold after a hail-storm then during and before the hail storm. Give reason.

थोडक्यात उत्तर
Advertisements

उत्तर

The reason is that after the hail storm, the ice absorbs the heat energy required for melting from the surrounding, so the temperature of the surrounding falls further down and we feel colder.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 11: Calorimetry - EXERCISE-11 (B) [पृष्ठ २८१]

APPEARS IN

सेलिना Concise Physics [English] Class 10 ICSE
पाठ 11 Calorimetry
EXERCISE-11 (B) | Q 26. | पृष्ठ २८१

संबंधित प्रश्‍न

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.


State the effect of enhancement of green house effect.


How will climate changes affect the various animal species?


Does specific heat depend upon the mass of a substance?

Write two advantages of high specific heat capacity of water.


Read this activity and answer the following questions.

  1. Take three spheres of iron, copper and lead. the lead of equal mass.
  2. Put all the three spheres in boiling water in the beaker for some time.
  3. Take the three spheres out of the water.
  4. All the spheres will be at a temperature 100 °C.
  5. Put them immediately on the thick slab of wax.
  6. Note, the depth that each of the sphere goes into the wax.

Questions:

  1. Which property is determined from this activity?
  2. Give name to that property.
  3. Explain the term principal of heat exchange with the help of this activity.

Numerical Problem.

What could be the final temperature of a mixture of 100 g of water at 90 °C and 600g of water at 20°C.


Heat is applied to a rigid diatomic gas at constant pressure. The ratio ΔQ : ΔU : ΔW is ______.


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]


Calculate the amount of heat energy required to raise the temperature of 200 g of copper from 20°C to 70°C. Specific heat capacity of copper = 390 J kg-1 K-1.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×