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Secondary II • 2yr.

A chemical reaction between gases takes place and their volume suddenly doubles. True or false: matter was created.

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Explanations (1)

  • Explanation from Alloprof

    Explanation from Alloprof

    This Explanation was submitted by a member of the Alloprof team.

    Team Alloprof • 2yr.

    Thank you for your question!

    According to the law of conservation of matter, no matter is lost nor created. It is simply transformed.

    You may have already heard of this in the form of popular wisdom: "Nothing is lost, nothing is created, everything is transformed!"

    Essentially, although the volume changes after the reaction, it is only because the reaction’s products have properties that make them take up a larger volume. It is impossible that this chemical reaction created a new gas.

    The assertion is therefore false.

    Don’t hesitate to ask other questions!

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