What is the capillary pressure for water in a vertical tube of radius $10 \mathrm{~nm}$. Express your answer in pascals and as a ratio relative to atmospheric pressure.

Water pressure at the bottom of the ocean arises from the weight of the overlying water. Does this mean that the water exerts pressure only in the downward direction? Explain.

Carbon dioxide discharges from a tank through a convergent nozzle into the atmosphere. If the tank temperature and gage pressure are 38$^{\circ} \mathrm{C}$ and 140 kPa, respectively, what jet temperature, pressure, and velocity can be expected? Barometric pressure is 101.3 kPa.

An aerosol can has an internal pressure of 3.85 atm at $25^{\circ} \mathrm{C}$. What temperature is required to raise the pressure to 18.0 atm?

Consider the scalar field (pressure field) given by $f(x, y)=9 x^2+4 y^2$. Find the isobars (curves of constant pressure). Sketch some of them.

Automobile tire pressure increases about 1 psi (pound per square inch) for each 10° increase in air temperature. At an air temperature of 55° F, a tire's pressure is 30 psi. Write an equation that models the tire's pressure as function of air temperature.

The deflection on the manometer is $h$ meters when the pressure in the tank is $150\ \mathrm{kPa}$ absolute. If the absolute pressure in the tank is doubled, what will the deflection on the manometer be?

If a sound intensity level of 0 dB at 1000 Hz corresponds to a maximum gauge pressure (sound amplitude) of $10^{-9}\ \mathrm{atm},$ what is the maximum gauge pressure in a 60-dB sound? What is the maximum gauge pressure in a 120-dB sound?

The vapour pressure of water is $12.3 \mathrm{kPa}$ at $300 \mathrm{~K}$. Calculate the vapor pressure of 1 molal solution of a non-volatile solute in it.

What must the water pressure be to supply the second floor ( $18.0 \mathrm{ft}$ up) with a pressure of $50.0\ \mathrm{lb} / \mathrm{in}^2$ at that level?

A cook puts 9.00 g of water in a 2.00 L pressure cooker that is then warmed to $500^{\circ} \mathrm{C}$. What is the pressure inside the container?

What will be the total gas pressure when the partial pressure of $\mathrm{A}(\mathrm{g})$ has fallen to $8.00 \times 10^2 \mathrm{mmHg}$ ?

Define the term partial pressure.

Which one of the given situations would Kendall's tau be suitable?

c) During its initial release, is there an association between the number of downloads of a new smartphone game and the number of hours since it has been released?