Estimate the mean distance between molecules in liquid water

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Reference no: EM131156738

Problem 1.4:

The intermolecular potential of methane is given by the following equation:

with a = 2.05482 × 10-21 J, σ = 3.786 Å, and r is the distance between molecules (in Å).

a) Make a plot of this potential in the range r = 3 Å to 10 Å.

b) Calculate the distance r* (in Å) where the potential has a minimum.

c) Estimate the density of liquid methane based on this potential.

Find the density of liquid methane in a handbook and compare your answer to the tabulated value.

Problem 1.5:

a) Estimate the mean distance between molecules in liquid water. Assume for simplicity that molecules sit on a regular square lattice.

b) Repeat for steam at 1 bar, 200 °C (density 4.6 × 10-4 g/cm3). Report the results in Å.

Reference no: EM131156738

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