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26 February, 03:55

A temperature change in a reaction indicates a. physical change b. no change c. a chemical change d. a positive change

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  1. 26 February, 04:25
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    a change in temperature indicates chemical change
  2. 26 February, 04:33
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    Answer : The correct option is, (C) a chemical change

    Explanation:

    Physical change : It is a change in which no new compound or substance is formed. In this, changes occurs only in the phase.

    Chemical change : It is a change in which a new compound or substance is formed and releases some energy. There is no changes occurs in the phase.

    For example:

    When eggs cooked : It is a chemical change because a new compound or substance is formed by the temperature change. As we know that a liquid is present inside the egg, when we are cooking the egg then the liquid changes to solid by providing temperature. So, a temperature change in a reaction indicates a chemical change.

    Hence, the correct option is, (C) a chemical change
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