An open-end manometer containing mercury was connected to a vessel holding a gas at a pressure of 767 torr. the atmospheric pressure was 724 torr. what is the difference in the heights of the mercury, expressed in cm?

h = 4.32 cm

Explanation:

∴ P = 767 torr

∴ Patm = 724 torr

∴ δ Hg = 13534 Kg/m³

∴ g = 9.8 m/s²

⇒ h = (767 torr - 724 torr) / ((13534 Kg/m³)(9.8 m/s²))

⇒ h = 43 torr / 132633.2 Kg/m²s² = 5732.86 Pa/ 132633.2 Kg/m²s²

∴ Pa ≡ Kg/ms²

⇒ h = 0.0432 m = 4.32 cm

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .

pie chart because it is in percents ( % )