A natural gas mixture containing 60% methane, 30% ethane, and 10% propane by volume (mole) is used as a fuel in a furnace of a steam power plant. The fuel enters the combustion chamber at 1 atm, 25 C and burned in a steady-flow combustion chamber with 140% excess air which also enters the combustion chamber at 1 atm, 25 C. The combustion products leave the combustion chamber at 2200 K. For a complete combustion, determine: (a) the mole fraction of various gases in the combustion products, (b) the air/fuel ratio, (c) the amount of heat transfer from the combustion chamber per unit mole of fuel burned.

here we have to get the change of moles on decrease the volume of the reaction in gas phase.

the   per the given options it will decrease by (d) 11-50%

we know, on decreasing the volume of the gas phase reaction the reaction moves to the product side.

the reaction:                     so₂cl₂ (g) = so₂ (g) + cl₂ (g)         total

the moles at equilibrium:   1 - α                 α               α           = 1+α

concentrations:                   1 - α               α               α           = 1 + α

(concentration = moles/volume, as volume is 1 l)

(where α is the degree of dissociation)

now the dissociation constant in terms of concentration is :

=  

or,

or,   = (at v = 1l)

the reaction:                     so₂cl₂ (g) = so₂ (g) + cl₂ (g)         total

the moles at equilibrium:   1 - α                 α               α           = 1+α

concentrations:               (1 - α)/0.5           α/0.5         α/0.5       = (1 + α)/0.5

thus, the dissociation constant in terms of concentration is :

or,  

=  

so, the change of 1 : 1/0.5

or, 1: 2

thus it will decrease by 50%.

or, as per the given options it will decrease by 11-50%

answer: i dont know the answer but this might

explanation:

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