If you want to find the volume of a gas using the ideal gas law, which variable(s) do you need to know?

V, T, R

and

P

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T, R, P

and

n

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T, P

and

n

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T, P

and

R

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T

and

P

only

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Solution

The correct option is B $T, P$ and $n$
The ideal gas equation is
$P V = n R T$
To find the volume of a gas using the ideal gas law, the variables needed are $T, P$ and $n$ .
Note: R is a constant and not a variable.

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