Consider the following reaction N2(g) + 3H2(g) 2NH3(g)0.866 atm of N2 and 0.0496 atm of H2 are placed in a flask; when equilibrium is reached, the pressure of NH3 is 0.0310 atm. Calculate Kpfor the reaction. Use the following steps to solvethis problem:

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Explanation:

Equilibrium constant is the ratio of the concentration of products to the concentration of reactants each term raised to its stochiometric coefficients.

The given balanced equilibrium reaction is,

at t= 0     0.866 atm     0.0496 atm        0 atm

At eqm. conc.  (0.866-x) atm   (0.0496-3x) atm        2x atm  

The expression for equilibrium constant for this reaction will be,

given : 2x = 0.0310

x= 0.0155

Now put all the given values in this expression, we get :   

chemical energy is stored in the chemical bonds of atoms and molecules. it can only be seen when it is released in a chemical reaction. when chemical energy is released, the substance from which the energy came is often changed into an entirely different substance.

this chemical reaction releases energy in the form of light and heat. chemical energy is the potential energy stored in the arrangement of atoms within molecules. breaking chemical bonds requires energy, while forming new chemical bonds releases energy.

the atp molecule can store energy in the form of a high energy phosphate bond joining the terminal phosphate group to the rest of the molecule. in this form,energy can be stored at one location, then moved from one part of the cell to another, where it can be released to drive other biochemical reactions.