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Answer: it will be doubled
You can use the ideal gas law equation for this problem:
P:Pressure, V:Volume, n:number of moles, R:gas constant, T:temperature
First write the halved pressure:
To adjust for the pressure change, the volume will change as well. You have to figure what value will keep the equation them same. By doubling the volume (multiplying by 2), the '2's will cancel out on the left-hand side of the equation, bringing the balance back to the equation.
(1/2)P*2V=nRT The '2's cancel out.
Another way to look at it:
(1/2)*x=1 '1' because we want to keep the equation constant. 'x' is the value that is multiplied by volume.
Volume is doubled
Please let me know if you need any clarification. I'm always happy to answer your questions.
Sep 1st, 2015
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