If Keq = 4 x 10^-7, which of the following is true?
Aproducts are favored
Breactants are favored
Cthere are no reactants remaining
Dreactants and products are present in equal amounts
- What does a chemical reaction rate measure?
Athe amount of reactant used
Benergy change per unit of time
Cchange in amount of reactant per unit of time
Dthe amount of time needed for the reaction to come to completion
- In an equilibrium reaction that makes more moles of gas than it consumes, what is the effect of increasing the pressure?
Athe reaction makes more reactants
Bthe reaction makes more products
Cthe reaction is unchanged
Dthe answer cannot be determined
- What is the effect of adding ore water to the following equlibrium reaction? CO2 + H20 <--> H2CO3
Amore H2CO3 is produced
Bthere is no effect
Cthe equilibrium is pushed in the direction of the reactants
DCO2 concentration increases
- Which of the following explains the increase in reaction rate from a catalyst?
Amore collisions between particles, so more successful collisions
Bcatalysts do not increase the reaction rate
Csame number of collisions, but more are successful
Dfewer collisions but more successful
- Which of the changes listed below would shift the following reaction to the right? 4HCI(g) + 02(g) <--> 2CL2(g) + 2h20(g)
Aincrease of pressure
Baddition of Cl2
Cdecrease of pressure
Dremoval of 02
Aproducts are favored
Breactants are favored
Cthere are no reactants remaining
Dreactants and products are present in equal amounts
Athe amount of reactant used
Benergy change per unit of time
Cchange in amount of reactant per unit of time
Dthe amount of time needed for the reaction to come to completion
Athe reaction makes more reactants
Bthe reaction makes more products
Cthe reaction is unchanged
Dthe answer cannot be determined
Amore H2CO3 is produced
Bthere is no effect
Cthe equilibrium is pushed in the direction of the reactants
DCO2 concentration increases
Amore collisions between particles, so more successful collisions
Bcatalysts do not increase the reaction rate
Csame number of collisions, but more are successful
Dfewer collisions but more successful
Aincrease of pressure
Baddition of Cl2
Cdecrease of pressure
Dremoval of 02