What happens when a glass of water is set in the sun until the water evaporates?
A. Activation energy increases.
B. Entropy increases.
C. Condensation increases.
D. Enthalpy decreases.

explanation: no but i do not usually comment

it is the most commonly accepted one

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

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