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The graph below shows the changes in the temperature of ice when it is heated from -20 °C to 100 °C.

(A). Heat is not added in portions BC and DE.
(B). Heat is not added in portions AB and CD.
(C). Change of state takes place in portions BC and DE.
(D). Change of state takes place in portions AB and CD.


Sagot :

DALAU

Based on the graph, the following conclusion is correct

Change of state takes place in portions BC and DE

because the temperature is constant in portion BC (0oC) & DE (100oC) and the only form has been changed from ice to water and from water to vapour respectively.

Answer: its c i think

Explanation: