Which one of the steps while burning a candle is not reversible?
A. Melting of solid wax
B. liquid wax changes into vapours
C. Wax vapour bums into flame
D. All of these
Answer:C
Which one of the steps while burning a candle is not reversible?
A. Melting of solid wax B. liquid wax changes into vapours C. Wax vapour bums into flame D. All of these