Best Answer

PV = nRT

You can use whatever you want essentially, however S.I units are generally preferred so you don't end up in a mess.

P in pascals (Pa)

V in metres (m3)

n is just the number of moles

R is the gas constant 8.3145x103 (JK-1mol-1)

T is temperature in Kelvin (K)

Converting Celsius to Kelvin is simple (degrees celcius + 273.15) = temperature in Kelvin

Note:- if you keep pressure in Torr rather than Pa, you have to use a different value for the gas constant R.

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12y ago
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11y ago

Kelvin must always be used

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Q: What temperature scale must always be used when working gas law problems?
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