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ICSE Class 9 Chemistry Question 17 of 24

Model Question Paper — 2 — Question 12

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12
Question

Question 5(d)

(i) What causes the violence associated with torrential rain?

(ii) Which property of water enables it to modify the climate?

(iii) Explain why distilled water tastes flat.

Answer

(i) The sudden release of latent heat of condensation causes the violence associated with torrential rain.

(ii) Due to it's high specific heat capacity, the presence of a large amount of water is able to modify the climate of the nearby land areas, making them warmer in winter and cooler in summer. Land and sea breezes also take place because of this great moderating property of water.

(iii) Pure water is tasteless. The taste in water is due to the gases and solids dissolved in it i.e., impurities present in it. As boiled and distilled water are pure containing no impurities hence they taste flat i.e., are tasteless.