In the product 5mab,
(i) 5 is the numerical coefficient of mab.
(ii) the coefficient of ab is 5m.
(iii) m, a and b are the only factors.
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)
Which of the following graphs represents exothermic reaction ?
(a) Only I (b) Only II (c) Only III (d) I and II