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dybincka [34]
3 years ago
7

Some students were building models of solids, liquids, and gases by gluing plastic balls to a sheet of cardboard. which of their

models best shows the particles in a solid?

Chemistry
1 answer:
JulsSmile [24]3 years ago
7 0
Below picture contains the given models.

Answer:
            Option-B is the correct model.

Explanation:
                   Solid is a state of matter in which the particles are closely packed, has definite volume and shape. Like liquids they don't flow, either they occupy the volume of container as that occupied by both gases and liquids. The inter-molecular forces between solid particles are very strong as compared to liquids ans gases. So, the model B has a particles very closely packed to each other.

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Consider the following reaction: CO(g)+2H2(g) <--> CH3OH(g).
Andrew [12]

Answer:

123 is the equilibrium constant for the reaction.

Explanation:

CO(g)+2H_2(g)\rightleftharpoons CH_3OH(g)

Equilibrium concentration of reactants :

[CO]=0.115 M,[H_2]=0.116 M

Equilibrium concentration of products:

[CH_3OH]=0.190 M

The expression of an equilibrium constant is given by :

K_c=\frac{[CH_3OH]}{[CO][H_2]^2}

K_c=\frac{0.190 M}{0.115 M\times (0.116 M)^2}

K_c=122.78 \approx 123

123 is the equilibrium constant for the reaction.

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