SOMEONE ASKED 👇
Indicate the order of reaction for each of the following observations.?
HERE THE ANSWERS 👇
a.half life gets shorter as initial concentration is increased ….this means that half life is inversely proportional to initial concentration …means this is the case of second order reaction…
half life = 1/[Ao]k
b.we know that for a first order reaction k = 2.303/t log [Ao]/[A]
where [Ao] = initial concentration
[A] = concentration at any time t
and k is rate constant…
so, kt/2.303 = log [Ao]/[A]
kt/2.303 = log [Ao] – log [A]
log [A] = -kt/2.303 + log [Ao]
this equation is of the form y = mx (equation of straight line )…this if log [A] values are plotted against time ‘t’ the graph obtained will be a straight line
intercept made on y axis would be log [Ao] and slope of line will be equal to -k/2.303..
c.for zero order reaction : half life = [ao]/2k..half life is directly proportional to initial concentration ….so as initial concentration increases half life also increases…
see this link–
Oxidation is the upward push indoors the oxidation no. on an comparable time as alleviation is cut back in oxidation no.With this in recommendations, enable us to now answer the questions: a. Fe is oxidised reason:oxidation quantity grew to alter into from 0 to +3. b.Zn is oxidised on an comparable time as Ag is decreased. reason:oxidation no. of Zn is from 0 to +a million on an comparable time as that of Ag is from +a million to 0. additionally alleviation is the which incorporates of an electropositive element on an comparable time as oxidation is which incorporates electronegative element. c.Cl is decreased on an comparable time as ok is oxidised. reason:From the above definition, ok is electropositive subsequently Cl is decreased.additionally, Cl is electronegative subsequently ok is oxidised. Oxidation is the which incorporates of oxygen to a element on an comparable time as alleviation is the removing of oxygen. d.Ca is oxidised. reason:addition of oxygen. For reference purposes, oxidation is likewise the removing of hydrogen on an comparable time as alleviation is its removing.