In which of the following is energy released :
(i) When ice melts
(ii) When water vapour converts into liquid water
(iii) When water evaporates to form water vapour

Only (i) and (ii)

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Only (ii) and (iii)

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Only (i) and (iii)

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(i), (ii) and (iii)

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Solution

The correct option is A Only (i) and (ii)
Heat energy is released when water vapour converts to liquid water. While in melting of ice and evaporation of water, heat is absorbed.

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Question 3

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(b) (i) and (ii)
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(d) (iv) only

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In which of the following is energy released : (i) When ice melts (ii) When water vapour converts into liquid water (iii) When water evaporates to form water vapour

The correct option is A Only (i) and (ii)Heat energy is released when water vapour converts to liquid water. While in melting of ice and evaporation of water, heat is absorbed.

In which of the following is energy released :
(i) When ice melts
(ii) When water vapour converts into liquid water
(iii) When water evaporates to form water vapour

The correct option is A Only (i) and (ii)
Heat energy is released when water vapour converts to liquid water. While in melting of ice and evaporation of water, heat is absorbed.