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प्रश्न
What property of water makes it an effective coolant?
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उत्तर
The high specific heat capacity of water makes it an effective coolant.
संबंधित प्रश्न
What do you understand by the following statements:
The heat capacity of the body is 60JK-1.
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 meaning of green house effect.
How will climate changes affect the various animal species?
Discuss how high specific heat capacity of water helps in formation of land and sea breeze.
Read this activity and answer the following questions.
- Take three spheres of iron, copper and lead. the lead of equal mass.
- Put all the three spheres in boiling water in the beaker for some time.
- Take the three spheres out of the water.
- All the spheres will be at a temperature 100 °C.
- Put them immediately on the thick slab of wax.
- Note, the depth that each of the sphere goes into the wax.
Questions:
- Which property is determined from this activity?
- Give name to that property.
- Explain the term principal of heat exchange with the help of this activity.
Which of the following substances (A, B and C) has the highest specific beat?
Conductors have generally high specific heat capacities and insulators have low specific heat capacities.
The specific heat capacity of ______ is maximum.
