Which of the following process / processes release heat ?
(i) condensation (ii) vaporisation (iii) freezing (iv) melting

(a) only (i) (b) only (iv) (c) (i) and (iii) (d) (ii) and (iv)

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Solution

i) .Condensation and iii).freezing give off heat
option c is correct

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Q. Question 3
Which of the following statements are correct?
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If p = n(m+n)(m+n-1)m, which of the following are the factors of p (Given p,n,m are natural numbers).

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Which of the following process / processes release heat ? (i) condensation (ii) vaporisation (iii) freezing (iv) melting (a) only (i) (b) only (iv) (c) (i) and (iii) (d) (ii) and (iv)

i) .Condensation and iii).freezing give off heat option c is correct

Which of the following process / processes release heat ?
(i) condensation (ii) vaporisation (iii) freezing (iv) melting

(a) only (i) (b) only (iv) (c) (i) and (iii) (d) (ii) and (iv)

i) .Condensation and iii).freezing give off heat
option c is correct