6. List any two effect of heat and give one example for each?
Answers
The effect of heat are given below:
(i) When the heat is supplied to a body, the temperature rises.
(ii) Heat energy may bring about chemical changes in a substance.
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Answer:
1. Raises the temperature
2. Changes state
Explanation:
Examples-
(i) On a hot day while cycling on a road if we touch the handle of a bicycle instead of the grips, the handle will seem to be hotter than the grips because the handle is a good conductor of heat and when we touch any part of it, heat flows to the hand, not only from that part but also from the neighboring parts: whereas in the case of grips the heat flows to the hand from only that part which is touched.
(ii) When heat is provided to ice, it uses the heat to break the inter molecular force of attraction and change ice into water H20(solid) ⇒H20(liq) on effect of heat