Chemistry Exan 2

Question 1

density

Answer 1

mass/volume

Question 2

mass

Answer 2

densityxvolume

Question 3

Vapor pressure

Answer 3

Pa(vapor pressure of solution)=Xa(mole fraction)xPoa(vapor pressure at that temperature)

Question 4

if K value is greater than 1

Answer 4

product concentration is higher/favored

Question 5

If K value is less than 1

Answer 5

Reactant concentration is higher/favored

Question 6

If Q=K

Answer 6

reaction is at equilibrium

Question 7

If Q is greater than K

Answer 7

there is too much product and equilibrium shofts to the left forms reactants

Question 7

increase in pressure

Answer 7

shift to less number of moles

Question 7

If Q is less than K

Answer 7

there is too much reactant, and equilibrium shift to the right forms more products

Question 8

decrease in volume

Answer 8

shift less number of moles

Question 9

decrease in pressure

Answer 9

shift more number of moles

Question 10

increase volume

Answer 10

shift more number of moles

Question 11

-delta H

Answer 11

exothermic

Question 12

+deltaH

Answer 12

endothermic

Question 13

exothermic/increase temp

Answer 13

shifts to reactants

Question 14

exothermic/decrease temp

Answer 14

shift to products

Question 15

endothermic/increase temp

Answer 15

shift to products

Question 16

endothermic/decrease temp

Answer 16

shift to reactants

Question 17

If concentration of reactant is increased

Answer 17

Shift to product

Question 18

If concentration of product is decreased

Answer 18

Shift to product

Question 19

If concentration of reactant is decreased

Answer 19

Shift to reactants

Question 20

If concentration of product is increased

Answer 20

Shift to reactants

Question 21

If solute in solution increases, freezing point and Vapor pressure

Answer 21

Decreased

Question 22

More particles

Answer 22

Lower Vapor pressure

Question 23

Colloid

Answer 23

Complete mixture