Which of the following statements is/are correct?

Options

A. For the reaction `N_(2)(g) + 3H_(2)(g)rarr 2NH_(3)(g)` under certain conditions of temperature and partial pressure of the reactants, the rate of formation of `NH_(3)` is `0.001 kg h^(-1)`. The rate of converisons of `H_(2)` under the same conditions is `0.0015 kg hr^(-1)`.
B. The rate law for the reaction
`RCl + NaOH (aq) rarr ROH + NaCl`
is given by, rate `= k[RCl]`. The rate of the reaction will be halved on reducing the concentration of alkyl halide to one half.
C. The rate of the reaction in part (b) increased on decreasing the temperature of the reaction.
D. The rate of the chemical change is inversely proportional to the concentration at that instant.

Answer

B

Explanation

(a) `(-d[H_(2)])/(dt) = (3)/(2)(d[NH_(3)])/(dt) xx(Mw of H_(2))/(Mw of NH_(3))`
`= (3)/(2) xx 0.001 xx (2)/(17)`
`= 1.765 xx 10^(-4) kg hr^(-1)` (Hence, wrong)
(b) Correct statement.
(c ) Directly proportional (Wrong statement).
(d) Increaisng the temperature (Wrong statement).