Question

The collisional diameter d of a H2 molecule is about 0.25 nm=2.5×10?10m. For H2 gas at 0?C and 1 bar, calculate the following:

Part A

the root-mean-square velocity.

Express your answer using three significant figures and include the appropriate units.

<?2>1/2 =

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Part B

the translational kinetic energy of 1 mol of H2 molecules.

Express your answer using three significant figures and include the appropriate units.

E =

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Part C

the number of H2 molecules in 1 mL of the gas.

Express your answer using three significant figures.

N =		molecules

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Part D

the mean free path.

Express your answer using two significant figures and include the appropriate units.

? =

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Part E

the number of collisions each H2 molecule undergoes in 1 s.

Express your answer using two significant figures.

	collisions

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Part F

the total number of intermolecular collisions in 1 s in 1 mL of the gas.

Express your answer using two significant figures.

	collisions

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Answer 1