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If you leave a can that has been opened overnight and a can that is not open overnight which will be heaver?

In: Physics [Edit categories]

Answer:

This might depend on

a) what is in the cans
b) how accurate the scales are

If a can with liquid in it is left open overnight some moisture may be lost by evaporation - making it slightly lighter than the unopened can.

If a can is open, some particles of dust might drift into it - more than would settle on an unopened can - and make it slightly heavier than the unopened can.

However, If the can has nuts in it I'll be tempted to take one or two, or a handful - making it considerably lighter than the unopened one.

First answer by Maxiogee. Last edit by Maxiogee. Contributor trust: 680 [recommend contributor ]. Question popularity: 1 [recommend question].

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