Chemical Equilibrium
Unit of the equilibrium constant for CO + 2H2 CH3OH is
no units
mol dm-3
dm3mol-1
[mol dm-3]-2
[mol dm-3]-2
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Unit of equilibrium constant for H2 + I2 2HI isA. no units
B. mol dm-3
C. dm3mol-1
D. none of above
Unit of the equilibrium constant for N2O4 2NO2 is
A. mol dm-4
B. mol dm-3
C. dm3mol-1
D. mol dm-3
The state at which forward and reverse reactions occur at the same rate is
A. equilibrium
B. unstable equilibrium
C. not in equilibrium
D. neutral equilibrium
Due to the high concentration of reactants, the rate of the forward reaction is
A. lowest
B. moderate
C. highest
D. minimal
When diluting acid always add
A. water to acid
B. acid to water
C. acid to oxygen
D. hydrogen to acid
Substances which increase the rate of a chemical reaction are called
A. proteins
B. single cell protein
C. enzymes
D. catalysts
In the reverse reaction SO3 decomposes in to
A. S and O
B. S and O2
C. S2 and O
D. SO2 and O2
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