Is column pressure approximately constant \({ }^{*}\) for the following problems:

a. Column operating at nominal pressure \(\mathrm{p}=1.0 \mathrm{~atm}\) with 10 trays

b. Column operating at nominal pressure \(\mathrm{p}=1.0 \mathrm{~atm}\) with 30 trays

c. Column operating at nominal pressure \(p=7.0\) bar with 10 trays

d. Column operating at nominal pressure \(p=7.0\) bar with 30 trays

e. Column operating at nominal pressure \(\mathrm{p}=100.0 \mathrm{~mm} \mathrm{Hg}\) with 10 lowpressure-drop trays ( \(0.025 \mathrm{psi}\) pressure drop/tray)

*Column pressure is approximately constant if \(\Sigma\left[(\Delta \mathrm{p})_{\mathrm{i}}\right] / \mathrm{p}_{\text {nominal }}<0.10\). Trays are normal sieve trays unless specified differently.