Shared Flashcard Set

Details

Final Review Ch. 19 (#1)
Final Review Ch. 19 (#1)
21
Chemistry
11th Grade
05/27/2006

Additional Chemistry Flashcards

 


 

Cards

Term
At what stage of a reaction do the atoms have the highest energy?
Definition
Transition State Stage
Term
Why does a higher concentration make a reaction go faster?
Definition
There are more collisions per second only.
Term
In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the eddect of increasing the pressure?
Definition
The reaction makes more products.
Term
In a chemical reaction with a Keq of 1 * 10^8, the ____.
Definition
products are favored.
Term
What is the effect of adding more water to the following equilibrium reaction? CO2 + H20 <->H2CO3
Definition
More H2CO3 is produced
Term
What are the units for a reaction rate?
Definition
mol/s
Term
Why does a catalyst cause a reaction to proceed faster?
Definition
The activation energy is lowered only.
Term
What happens to a reaction at equilibrium when a product is removed from the reaction system?
Definition
The reaction makes more products.
Term
Which of the following does NOT affect the rate of a chemical reaction?
A. the equlibrium position
B. the temperature
C. the concentration of reactants
D. the presence of a catalyst
Definition
A. the equilibrium position
Term
If a reaction it reversiblem what are the relative amounts of reactant and products at the end of the reaction?
Definition
some product;some reactant
Term
A catalyst works by____.
Definition
lowering the activation energy barrier
Term
What happens to a reaction at equilibrium when more reactant is added to the system?
Definition
The reaction makes more products.
Term
The rate of a chemical reaction normally _______ as reaction concentration increases.
Definition
increases
Supporting users have an ad free experience!