2SO2 (g) + O2 (g) _ 2 SO3 (g) + heat A) remain unchanged, but the reaction mixtu
ID: 688589 • Letter: 2
Question
2SO2 (g) + O2 (g)_ 2 SO3 (g) +heat
A) remain unchanged, but the reaction mixture will getcooler
B) shift to the right, towards products
C) shift to the left, towards reactants
D) remain unchanged, but the reaction mixture will getwarmer
E) Pressure has no effect on equilibrium.
2) Which description best fits a gas?
A) volume and shape of container; no intermolecularattractions
B) volume and shape of container; strong intermolecularattractions
C) definite volume; shape of container; moderate intermolecularattractions
D) definite volume; shape of container; weak intermolecularattractions
E) definite shape and volume; strong intermolecularattractions
3) In comparing liquids and gases, liquids have ________compressibility and ________ density.
A) greater; smaller
B) greater, greater
C) smaller; greater
D) smaller; smaller
E) none of the above
4) The number of mm Hg in one atmosphere is ________.
A) 1.00
B) 101.325
C) 760
D) 14.7
A) five mm Hg
B) one atmosphere
C) one millimeter of mercury
D) one hundred pascals
E) five pounds per square inch
6) What would be the new pressure if a 400 mL gas sample at 380mm Hg is expanded to 800 mL
with no change in temperature?
A) 760 mm Hg
B) 950 mm Hg
C) 190 mm Hg
D) 380 mm Hg
E) 570 mm Hg
7) A sealed container with gas at 2.00 atm is heated from 20.0 Kto 40.0 K. The new pressure is
A) 1.00 atm.
B) 1.87 atm.
C) 2.14 atm.
D) 0.500 atm.
E) 4.00 atm.
8) How will the volume of a fixed sample of gas change ifthe pressure is doubled and its Celsius
temperature is halved?
A) It will double.
B) It will decrease by a factor of 4.
C) It will remain constant.
D) It will decrease by a factor of 2.
E) The change cannot be determined without more specificinformation.
9) What will be the new volume when 128 mL of gas at 20.0°Cis heated to 40.0°C while pressure
remains unchanged?
A) 256 mL
B) 64.0 mL
C) 120. mL
D) 137 mL
E) 128 mL
10) How will the volume of a fixed sample of gas change if itspressure is doubled and the Kelvin
temperature is doubled?
A) The change cannot be determined without more specificinformation.
B) It will decrease by a factor of 2.
C) It will increase by a factor of 4.
D) It will not change.
E) It will double.
Explanation / Answer
We Know that : The given Reaction is : 2 SO2 (g)+ O2 (g) _2 SO3 (g) +heat ---- B) shift to the right, towardsproducts 2. A) volume and shape of container; no intermolecularattractions 3. Incomparing liquids and gases, liquids have _smaller_compressibilityand _greater density. 4. Thenumber of mm Hg in one atmosphere is 760 mm Hg 5. The largest pressure is 1 atm 6. What would be the new pressure if a 400 mL gas sample at 380 mm Hgis expanded to 800 mL with no change in temperature?P2 = P1 V1 / V2 = 380 mm Hg x 400 mL / 800 mL = 190 mm Hg 7. P1 / T1 = P2 / T2 2.0 atm / 20 K = P2 / 40.0 K P2 = 4.0 atm 2.0 atm / 20 K = P2 / 40.0 K P2 = 4.0 atm
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