Given the Equation: 2C(g) + 2D(g) = 3E(g) + F(g) + heat ,Predict the direction of the shift in equilibrium, Addition of a catalyst. a. forward b. backward c. no change Most reactions are carried out in liquid solution or in the gaseous phase because in such situations a. Activation energies are higher. b. It is easier for reactants to come in contact with each other. c. Kinetic energies of reactants are lower. d. Products are less apt to decompose. Whether a reaction is exothermic or endothermic is determined by a. the activation energy b. the physical state of the reactants c. how reactant and product potential energies compare d. whether a catalyst is present e. None Which of the following changes is most likely to decrease reaction rate for the chemical reaction 2CO + O2 ---> 2CO2? a. adding twice as much O2 to the reaction mixture b. tripling the temperature of the reaction mixture c. adding a catalyst to the reaction mixture d. removing some CO from the reaction mixture e. None
Given the Equation: 2C(g) + 2D(g) = 3E(g) + F(g) + heat ,Predict the direction of the shift in equilibrium, Addition of a catalyst.
a. forward
b. backward
c. no change
Most reactions are carried out in liquid solution or in the gaseous phase because in such situations
a. Activation energies are higher.
b. It is easier for reactants to come in contact with each other.
c. Kinetic energies of reactants are lower.
d. Products are less apt to decompose.
Whether a reaction is exothermic or endothermic is determined by
a. the activation energy
b. the physical state of the reactants
c. how reactant and product potential energies compare
d. whether a catalyst is present
e. None
Which of the following changes is most likely to decrease reaction rate for the
a. adding twice as much O2 to the reaction mixture
b. tripling the temperature of the reaction mixture
c. adding a catalyst to the reaction mixture
d. removing some CO from the reaction mixture
e. None
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