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The given graph shows the change in temp...

The given graph shows the change in temperature of water with time as it is brought to boil before being Ieft to cool.
Based on the graph, which of the following statements are correct?
(i) Evaporation only occurs from P to Q.
(ii) There is heat gain from P to R.
(iii) The water is boiled for 6 minutes.
(iv) Water exists in two different states between Q and R.

A

(i) and (ii) only

B

(ii) and (iv) only

C

(i) and (iii) only

D

(ii), (iii) and (iv) only

Text Solution

Verified by Experts

The correct Answer is:
D
Evaporation can occur all temperatures. During boiling temperature remains constant so, it is boiling from 8 to 14 s. During this time, it exist in vapour and liquid phase simultaneously.
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