Question

1a) According to the ideal gas law, _______________.

a. a gas has infinite volume at absolute zero

b. temperature and volume are directly proportional

c. pressure and volume are directly proportional

d. temperature and pressure are inversely proportional

e. the gas constant increases as temperature decreases

1b) In a plot of the volume (V) of a gas versus its temperature (T), the slope represents _______________.

a. pressure (P)

b. RP/n

c. the gas constant (R)

d. number of moles (n)

e. nR/P

1c) All gases condense to the liquid state as their temperature approaches absolute zero, but according to Charles’s Law, a gas would theoretically have _______________ at absolute zero.

a. a gas constant of zero

b. an infinitely large volume

c. zero volume

d. high kinetic energy

e. its maximum pressure

1d) Determine the partial pressure of air (P_air) in a mixture of air and water vapor in which the total pressure of the gas mixture (P_gas) is 874 torr, and the partial pressure of water vapor (P_H2O) is 9600 Pa.

a. 946 torr

b. 10,474 torr

c. 802 torr

d. 8726 torr

e. 65 torr

1e) As the temperature of a gas increases, _______________.

a. absolute zero increases

b. the average kinetic energy of the gas particles increases

c. the gas constant decreases

d. its volume decreases

e. its pressure decreases

Answer 1