.ans 16

.ans 16 The tempersture changes jn closed kettle recorded for 14 mtnutes and represent. graph tvlow Which of the follow•ng state Kettle of •as heated for 6 manu minute.

Dear Student,

Lets look at all the options one by one
A.The water started to boil at time=0  and was heated up to time =8 min but the temperature only rise up to 6 min after that        heat goes to latent heat of vaporisation.
B.No the water was same throughout the time in the kettle.
C.Yes, the water reaches boiling point 100 degrees in 6 min
4th point is not complete

Regards