Ncert solutions

Ncert solutions

Grade 8

Combustion and Flame | Exercise

Question 13

Q13) Abida and Ramesh were doing an experiment in which water was to be heated in a beaker. Abida kept the beaker near the wick in the yellow part of the candle flame. Ramesh kept the beaker in the outermost part of the flame. Whose water will get heated in a shorter time?

Solution:

  • The outermost part of the flame is the hottest zone of the flame and has undergone complete combustion.
  • The yellow part of the candle flame is the least hot zone.

Hence, water in Ramesh’s beaker will get heated in shorter time as he kept the beaker in the hottest zone of the flame.

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subject-cta

Question 13

Q13) Abida and Ramesh were doing an experiment in which water was to be heated in a beaker. Abida kept the beaker near the wick in the yellow part of the candle flame. Ramesh kept the beaker in the outermost part of the flame. Whose water will get heated in a shorter time?

Solution:

  • The outermost part of the flame is the hottest zone of the flame and has undergone complete combustion.
  • The yellow part of the candle flame is the least hot zone.

Hence, water in Ramesh’s beaker will get heated in shorter time as he kept the beaker in the hottest zone of the flame.

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your science exam ?

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subject-cta
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