Consider the following system at equilibrium where Kc = 83.3 and H° = -87.9 kJ/mol at 500 K. PCl3 (g) + Cl2 (g) PCl5 (g)

The production of PCl5 (g) is favored by:

Indicate True (T) or False (F) for each of the following:

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1. increasing the temperature.

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2. increasing the pressure (by changing the volume).

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3. increasing the volume.

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4. adding PCl5 .

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5. adding Cl2 .

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.