The equilibrium constant has been the ratio of the product and the reactant concentration raised to the stoichiometric coefficient. The equilibrium concentration of methane is 0.059 M.
<h3 /><h3>What is equilibrium?</h3>
The equilibrium can be defined as the condition in which the rate of formation of product and the rate of breakdown of product is equal.
The given reaction has been:
![\rm CO+3\;H_2\;\leftrightharpoons\;CH_4+H_2O](https://tex.z-dn.net/?f=%5Crm%20CO%2B3%5C%3BH_2%5C%3B%5Cleftrightharpoons%5C%3BCH_4%2BH_2O)
The equilibrium constant (<em>k</em>c) for the reaction has been given as :
![k_c=\rm \dfrac{[CH_4][H_2O]}{[CO][H_2]^3}](https://tex.z-dn.net/?f=k_c%3D%5Crm%20%5Cdfrac%7B%5BCH_4%5D%5BH_2O%5D%7D%7B%5BCO%5D%5BH_2%5D%5E3%7D)
Substituting the values of the equilibrium concentration in the equation as:
![k_c=\dfrac{[\text C\text H_4][0.020]}{[0.30][0.10]^3} \\\\3.90=\dfrac{[\text C\text H_4]\;\times\;0.020}{0.0003} \\\\\rm CH_4=0.059\;M](https://tex.z-dn.net/?f=k_c%3D%5Cdfrac%7B%5B%5Ctext%20C%5Ctext%20H_4%5D%5B0.020%5D%7D%7B%5B0.30%5D%5B0.10%5D%5E3%7D%20%5C%5C%5C%5C3.90%3D%5Cdfrac%7B%5B%5Ctext%20C%5Ctext%20H_4%5D%5C%3B%5Ctimes%5C%3B0.020%7D%7B0.0003%7D%20%5C%5C%5C%5C%5Crm%20CH_4%3D0.059%5C%3BM)
The equilibrium concentration of methane is 0.059 M. Thus, option C is correct.
Learn more about equilibrium concentration, here:
brainly.com/question/7949757
Answer is: encasing nuclear waste in containers that are then taken to remote locations.
Nuclear (radioactive) waste is hazardous to all forms of life and the environment.
Long term storage of radioactive waste is needed. It is important the stabilization of the waste into a form which will neither react nor degrade over many years.
If nuclear waste is wasted in atmosphere or into oceans and lagre lakes, eventually it will come in contact with living organisms.
When Gas Becomes a Liquid.
When Gas Becomes a Solid.
When Liquid Becomes a Solid.
(Works for Plato Users) .
When an atom has an equal number of electrons and protons it has an equal number of negative charge (the electrons) and positive electric charges (the protons). The total electric charge of the atomic is therefore zero