3 years ago

What phase(s) of matter are the elements in Main Group 8?

Chemistry

1 answer:

DanielleElmas [232]3 years ago

6 0

Answer:

Solids.

Explanation:

Group 8 on the Periodic Table consists of transition metals:

- Fe (Iron)

- Ru (Ruthenium)

- Os (Osmium)

- Hs (Hassium)

Usually, transition metals are solids.

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Use the reactions below and their equilibrium constants to predict the equilibrium constant for the reaction 2A(s)⇌3D(g). A(s) ⇌

Liula [17]

Answer : The equilibrium constant for the reaction will be, $4.747\times 10^{-4}$

Explanation :

The following equilibrium reactions are :

(1) $A(s)\rightleftharpoons \frac{1}{2}B(g)+C(g)$ $K_1=0.0334$

(2) $3D(g)\rightleftharpoons B(g)+2C(g)$ $K_2=2.35$

The final equilibrium reaction is :

$2A(s)\rightleftharpoons 3D(g)$ $K_{eqm}=?$

Now we have to calculate the value of $K_{eqm}$ for the final reaction.

First we have to multiply equation (1) by 2 that means we are taking square of equilibrium constant 1 and reverse the equation 2 that means we are dividing equilibrium constant 2, we get the final equilibrium reaction and the expression of final equilibrium constant is:

$K_{eqm}=\frac{(K_1)^2}{K_2}$