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LAKHMIR SINGH & MANJIT KAUR-MATTER IN OUR SURROUNDINGS -SHORT ANSWER TYPE QUESTIONS
- Why is heat energy needed to melt a solid ? What is this heat energy c...
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- Under what conditions heat can be given to a substance without raising...
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- Why does the temperature remain constant during the melting of ice eve...
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- Why does the temperature remain constant during the boiling of water e...
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- Explain why ice at 0^(@)C is more effective in cooling than water at t...
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- Would you cool a bucket of water more quickly by placing it on ice or ...
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- Which contains more heat, 1 kg of ice at 0^(@)C or 1 kg of water at 0^...
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- Which contains more heat, 1 kg of water at 100^(@)C or 1 kg of steam a...
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- What is the physical state of water : (a) at 0^(@)c ? (b) at 25^(...
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- Explain briefly, how gases can be liquefied.
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- How is ammonia gas liquefied ?
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- Why does all the water of the earth not get evaporated during hot summ...
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- How will you demonstrate that water vapour is present in air ?
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