1.

The rate of the reation is expressed in different way as followed : -1/m . (d[A])/(dt)=+(1)/(n)(d[B])/(dt)=- (1)/(p)(d[C])/(dt)=+ 1/q (d[D])/(dt) The reaction is

Answer»

`na+mB rarr pC+qD`
`pA + qB rarr mC +n D `
`pA +mB rarr nC +qD`
`mA+pCrarr nB +qD `

Solution :A and C are reactants as their CONCENTRATION falls with time hence , (minus sign) .
B and D are the product of the reaction because their concentration increases with time hence (PLUS sign) .
'm' and 'p' are the STOICHIOMETRIC coefficients of A and C while 'n' and 'q' are the coefficients of products B and D .
So, the equation of the reaction BECOMES :
`mA + pC to n B + qD`.


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