Chemistry · May / June 2017 · Paper 22 · Question B8
5070
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B8 Nitrogen dioxide, NO2 , reacts with itself to make dinitrogen tetroxide, N2O4 , in an exothermic reaction. This reaction is investigated at 140 °C in a sealed container. A dynamic equilibrium mixture is established. 2NO2(g) N2O4(g) NO2(g) is a dark brown gas. N2O4(g) is a colourless gas.
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B8(a)[1]
B8(b)[1]
B8(c)[1]
B8(d)[2]
B8(e)[2]
B8(f)(i)[2]
B8(f)(ii)[1]
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