Consider the chemical reaction N_(2) (g) + 3H_(2)(g) to 2NH_(3) (g). The rate of this reaction can be expressed in terms of time derivated of concentration of N_(2)(g) , H_(2) (g) or NH_(3) (g) . Identify the correct relationship amongst the rate expressions .

Consider the chemical reaction N_(2) (g) + 3H_(2)(g) to 2NH_(3) (g). T

1.	Consider the chemical reaction N_(2) (g) + 3H_(2)(g) to 2NH_(3) (g). The rate of this reaction can be expressed in terms of time derivated of concentration of N_(2)(g) , H_(2) (g) or NH_(3) (g) . Identify the correct relationship amongst the rate expressions .
Answer» RATE = -d[`N_(2)`]/dt = `-1//3` d [ `H_(2)`] / dt = 1/2 [`NH_(3)`] /dt Rate = `-d[N_(2)`]/dt = `-3D[H_(2)]`/dt = 3d `[NH_(3)`]/dt Rate = d`[N_(2)`] /dt = 1/3d[`H_(2)`]/dt = 1/2 d `[NH_(3)]`/dt Rate = `-d[N_(2)]`/dt = `-d[H_(2)]`/dt = d`[NH_(3)]`/dt Solution :Individual rates become equal when eachof these are divided by their respective stoichiometric COEFFICIENT . Further the rate of the consumption of the reactant goes on decreasing and the rate of formation of the product goes on INCREASING with TIME hence -ve and +ve sign , respectively .