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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?

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?

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User Nick Salloum
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1 Answer

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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
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User Dave Michener
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