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When the ideal gas law constant 0.0821 is used, what unit of pressure should be used in the ideal gas law calculation?
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When the ideal gas law constant 0.0821 is used, what unit of pressure should be used in the ideal gas law calculation?

User Nick Salloum
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The pressure unit is in atmospheres or atm. To confirm this from the ideal gas equation:

R = VP/nT

plugging in the standard values of pressure, temperature and molar volume,

R = (22.4L/mo)l(1atm)/(273.15K) = 0.0821
User Dave Michener
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