Calculate the pressure (atm) of 1 mole of hydrogen gas at 298 K using the ideal

ID: 911244 • Letter: C

Question

Calculate the pressure (atm) of 1 mole of hydrogen gas at 298 K using the ideal gas law for a 1.00 L flask.

24.45388 (I think )

Calculate the pressure (atm) of 1 mole of hydrogen gas at 298 K using the Van der Waals equation for a gas in a 1.00 L flask.

Based on your answers to questions 1-2, which of the following statements about ideal gas law is true.

)The Ideal Gas Law and the Van der Waal equation predict the same pressure regardless of volume.

b)The Ideal Gas Law and the Van der Waal equation predict the same pressure regardless of temperature.

c)Ideal Gas Law accurately predicts the pressure when the volume is large.

d) Ideal Gas Law accurately predicts the pressure when the volume is small.

)The Ideal Gas Law and the Van der Waal equation predict the same pressure regardless of volume.

b)The Ideal Gas Law and the Van der Waal equation predict the same pressure regardless of temperature.

c)Ideal Gas Law accurately predicts the pressure when the volume is large.

d) Ideal Gas Law accurately predicts the pressure when the volume is small.

P = nRT /V for idela gas = ( 1 x 0.08206 x 298) / 1 = 24.45388 atm

Vander waals eq is ( P + an^2 /V^2) ( V-nb) = nRT ( for H2 a = 0.244 L^2 atm/mol^2 , b = 0.0266L/mol)

( P + 0.244) ( 1-0.0266) = 0.08206 x 298

P = 24.878 atm

Based on answers ideal gas predicts Pressure when volume is large.

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