All Problems

Transport Phenomena

Problem 2.238

An ideal gas consists of rigid diatomic molecules. How will a diffusion coefficient \(D\) and viscosity coefficient \(\eta\) change and how many times if the gas volume is decreased adiabatically \(n=10\) times?

Reveal Answer
D decreases n4/5≈6.3 times, η increases n1/5≈1.6 times. D \text { decreases } n^{4 / 5} \approx 6.3 \text { times, } \eta \text { increases } n^{1 / 5} \approx 1.6 \text { times. }
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