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34. What temperature in the graph below indicates that heat is being used to "break links" binding liquid molecules--that is, the region where the substance is vaporizing?Select one:a. 120°b. 80°c. 60°d. 20°

34 What Temperature In The Graph Below Indicates That Heat Is Being Used To Break Links Binding Liquid Moleculesthat Is The Region Where The Substance Is Vapori class=

Sagot :

We know that in a change of state heat is used to break the links between the molecules or atoms of the substance but the temperature remains the same; in the graph shown we notice that we have two portions where the temperature remains constant 20° and 120°. Since vaporizing happens at greater temperature that solid to liquid change of state we conclude that the region where this happens is 120°; therefore, the answer is A.

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