Paper 1 February/March 2020 CHEMISTRY (9701/12) IGCSE
CIE
AS & A Level
Chemistry (9701)
خرداد
2020
شامل مباحث:
تعداد سوالات: 54
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
60 دقیقه

پیش نمایش صفحه اول فایل
In the high temperatures of car engines, nitrogen reacts with oxygen to produce nitrogen monoxide.
$\frac{1}{2}$N$_2$(g) + $\frac{1}{2}$O$_2$(g) → NO(g) ΔH$^\ominus$ = +90kJ mol$^{-1}$
This reaction has activation energy E$_a$.
Which reaction pathway diagram correctly represents this reaction?