Answer to Question #60121 in Physical Chemistry for joseph orobiyi

Question

1 Which of the following statements about the kinetics of the reaction
$H_2(g) + Br_2(g) \rightarrow 2HBr(g)$ is definitely true?
The reaction is first order with respect to bromine, Br2.
The reaction is second order overall.
The presence of hydrogen bromide, HBr, inhibits the rate of the reaction
It is not possible to determine anything about the kinetics of the
reaction from the stoichiometry.



2 Milk sours more rapidly in summer than in winter because
in summer, the temperature Is high due to which effective collisions
increase and hence the rate of reaction becomes fast
in winter, number of molecules per unit volume increases and hence the
rate of reaction becomes fast
in summer, the energy of activation decreases and hence the of reaction
becomes fast
none of the above



3 For a reaction: $2H_2 + 2NO \rightarrow 2H_2O + N_2$ the rate law is
$R = K [H_2][NO]^2$ The Order of the reaction is?
0
3
2
1