A sample of gas has a particular volume at #0^o# #C#. To what temperature must it be heated, if the pressure is kept constant, to double its volume?

1 Answer
David G.
Jan 18, 2018

Since the temperature and volume are directly proportional (when the pressure is kept constant), doubling the volume requires doubling the temperature. #0^o# #C# = #273# #K#. Doubling this yields #546# #K# which is #273^o# #C#.

Explanation:

This question is tricky, because we are tempted to try to double zero and still get zero. It's one of the reasons the Kelvin temperature scale is important.

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