Question

For the reaction, N2 + 3H2 = 2NH3, the rate of reaction was measured as 1.25 * 10-3 mol L-15-1. The rate of change of concentration of ammonia will be (1) 1.25 x 10-3 mol L-1 5-1 (2) 2.5 x 10-3 mol L-1 s-1 (3) 3.75 x 10-3 mol L-1 s-1 (4) 6.25 x 10-5 mol L-1 s-1 The rate constant of a reaction changes with​

Answer 1

Answer:

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Answer 2

Given:

Rate of reaction = 1.25 × $10^{-3}$ $mol l^{-1} s^{-1}$

To Find:

Rate of change of concentration of ammonia = ?

Solution:

Rate of reaction is the speed on which reaction occur

Rate of reaction is function of the reactant and product concentration change

It is dependent on increase product conc. and decrease reaction conc.

Reaction

$N_{2} + 3H_{2}$ → $2 NH_{3}$

Rate of reaction (ROR) = $+\dfrac{1}{2} \dfrac{d(NH_{3}) }{dt}$

Rate of conc. of ammonia  = $\dfrac{d(NH_{3}) }{dt}$

= 2 × 1.25 × $10^{-3}$ $mol l^{-1} s^{-1}$

= 2.5 ×  $10^{-3}$ $mol l^{-1} s^{-1}$

Option 2 is answer of this question