Chem 115 Exam 2 Questions with Answers (100% Correct
Answers)
Calorie Answer: Amount of energy needed to raise temperature 1
gram of water 1 degree C
1 Cal = Answer: 4.184 joules
1000J= Answer: 1kJ Kilojoule
1000 Cal Answer: 1 kcal kilocalorie
1 kcal= Answer: 4.184 kJ
It takes blank to break bonds (absorbed) Answer: energy
Energy is blank when bonds form Answer: released
Lower EA= Answer: faster reaction
higher concentration= Answer: more collisions which equals faster
reaction
higher temp= Answer: more energy for EA and more collisions which
equals faster reactions
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, 2
catalyst= Answer: lower EA which equals faster reaction
Increasing temp in endothermic reaction Answer: equilibrium favors
products
increasing temp in exothermic reaction Answer: equilibrium favors
reactants
decreasing temp in endothermic reaction Answer: equilibrium favors
reactants
decreasing temp in exothermic reaction Answer: equilibrium favors
products
increasing pressure Answer: Equilibrium favors the side that has fewer
moles
decreasing pressure Answer: Equilibrium favors the side that has more
moles
adding reactant Answer: equilibrium favors products
removing reactant Answer: equilibrium favors reactants
adding product Answer: equilibrium favors reactants
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