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Calculate the critical temperature of a ...

Calculate the critical temperature of a van der Waals gas for which `P_c` is 73 atm and b is `34cm^(3) mol^(-1)`.

Text Solution

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van der Waals constant, `a= P_(c )27b^(2)`.
Critical temperature, `T_(c )= (8a)/(27Rb) =((8)(P_(c )27 b^(2)))/(27Rb)=(8P_(c )b)/(R )= ((8)(73 atm)(0.034 dm^(3)mol^(-1)))/(0.08206 dm^(3)atm K^(-1)mol^(-1))= 41.97 K`.
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