Question

Which of the following endothermic processes?
(1) Burning of natural gas
(2) Dilution of an acid
(3) Evaporation of water
(4) Sublimation of camphor (crystals)

(a) (1) and (2)
(b) (2) and (3)
(c) (4) and (2)
(d) (3) and (4)​

Answer 1

Explanation:

Mostly think its 3 & 4

Answer 2

Answer:

it is 3 & 4

Explanation:

mostly think it's 3 & 4