QCEVault

Chemical equilibrium — Question 1

Original QCE Vault practice · 1 mark

Q1 · Practice questionSimple familiar1 mark

QUESTION 1

A sealed flask contains the equilibrium N2O4(g)⇌2NO2(g) at constant temperature. Its colour remains constant. Which statement is correct?
(A)
Both reactions have stopped.
(B)
The forward and reverse rates are equal and non-zero.
(C)
The concentrations of the two gases must be equal.
(D)
All nitrogen dioxide has been consumed.
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