MCQ
$A$ & $B$ are respectively:
  • A

  • B

  • C


Answer

Correct option: D.

d

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$2 NO +2 H _{2} \rightarrow N _{2}+2 H _{2} O$

The above reaction has been studied at $800^{\circ} C$. The related data are given in the table below.

Reaction serial number Initial pressure of $H _{2}$ / $kPa$ Initial Pressure of $NO /$ $kPa$ Initial rate $\left(\frac{- dp }{ dt }\right) /( kPa / s )$
$1$ $65.6$ $40.0$ $0.135$
$2$ $65.6$ $20.1$ $0.033$
$3$ $38.6$ $65.6$ $0.214$
$4$ $19.2$ $65.6$ $0.106$

 The order of the reaction with respect to $NO$ is $...........$