How do frequency, amplitude, and wavelength affect interference between two waves?

On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?

How will the system respond to a temperature increase?

Observations show that interstellar clouds can have almost any shape and