1.

For the first order reaction 2N_(2)O_(5(g))to4NO_(2(g))+O_(2(g))

Answer»

the concentration of the reaction decreases exponentially with time
the half life of the reaction decreases with INCREASING temperature
the half life of the reaction DEPENDS on the initial concentration of the reactant
the reaction PROCEEDS to 99.6% completion in EIGHT half life duration

Solution :`0.693/(t_(1/2))xxt=2.303log(100/0.4),(2.303xx0.3010xxt)/(t_(1/2))=2.303log(25xx10)`
`(0.3010xxt)/(t_(1//2))=log25+log10,(0.3010xxt)/(t_(1/2))=log5^(2)+log_(10)^(10)=2log_(10)^(5)+1`
`=2xx0.6990+1=2xx0.7+1=1.4+1,(0.3010xxt)/(t_(1/2))=2.4,t=t_(1/2)xx2.4/0.3t_(1/2)=8xxt_(1//2)`


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