Chem 112 exam 1questions and
correct answers 100% verified
Which statement is true about kinetic molecular theory? - correct answers The collisions of particles
with one another is completely elastic.
conversion from atm to mmhg - correct answers 1 atm = 760 mmhg
conversion from atm to torr - correct answers 1 atm = 760 torr
convert 1.5 atm to mmhg - correct answers 1140 mmhg (1.5 times 760)
conversion from atm to psi - correct answers 1 atm = 14.7 psi
conversion from atm to Pa (and kPa) - correct answers 1 atm = 101,325 Pa and 101.325 kPa (bar)
conversion from atm to kPa - correct answers 1 atm = 101.325 kPa
convert 1.75 atm to psi - correct answers 25.725 psi (1.75 atm times 14.7)
convert mmhg to torr - correct answers their the same (1 to 1)
What is the pressure in a gas container that is connected to an open-end U-tube manometer if the
pressure of the atmosphere is 742 torr and the level of mercury in the arm connected to the container is
8.60 cm higher than the level of mercury open to the atmosphere? - correct answers First, know that
8.60 cm = 86.0 mm, which is equivalent to an 86.0 torr pressure difference between the atmosphere
and the container.
In this situation the pressure in the container is less than the atmosphere.
, How much less? 86 torr.
742 - 86 = 656 torr
An instrument used to measure the pressure of a gas in a laboratory is called a? - correct answers
Manometer, its in a large U formation with an open and closed end.
conversion of 1 atm to bars? - correct answers 0.98692 atm = 1 bar
(Nitrogen and hydrogen react to form ammonia according to the following equation:
N2(g)+3H2(g)→2NH3(g)
Consider these representations of the initial mixture of reactants and the resulting mixture after the
reaction has been allowed to react for some time).
If the volume is kept constant, and nothing is added to the reaction mixture, what happens to the partial
pressure of nitrogen during the course of the reaction? - correct answers If the volume is kept constant,
and nothing is added to the reaction mixture, what happens to the partial pressure of nitrogen during
the course of the reaction?
Because the number of nitrogen molecules decreases, the partial pressure of nitrogen must also
decrease.
What is gas pressure? - correct answers Gas pressure is the force exerted per unit area by gas molecules
as they strike the surfaces around them.
What causes gas pressure? - correct answers Gas pressure is caused by collisions of gas molecules with
surfaces or other gas molecules.
The volume of a gas is inversely proportional to the pressure of a gas is known as - correct answers
Boyle's Law
What volume (in mL) will a sample of F2 gas occupy in a syringe at 5.5 atm, if the F2 has a volume of 25.0
mL at 1.2 atm? - correct answers 5.5 mL
correct answers 100% verified
Which statement is true about kinetic molecular theory? - correct answers The collisions of particles
with one another is completely elastic.
conversion from atm to mmhg - correct answers 1 atm = 760 mmhg
conversion from atm to torr - correct answers 1 atm = 760 torr
convert 1.5 atm to mmhg - correct answers 1140 mmhg (1.5 times 760)
conversion from atm to psi - correct answers 1 atm = 14.7 psi
conversion from atm to Pa (and kPa) - correct answers 1 atm = 101,325 Pa and 101.325 kPa (bar)
conversion from atm to kPa - correct answers 1 atm = 101.325 kPa
convert 1.75 atm to psi - correct answers 25.725 psi (1.75 atm times 14.7)
convert mmhg to torr - correct answers their the same (1 to 1)
What is the pressure in a gas container that is connected to an open-end U-tube manometer if the
pressure of the atmosphere is 742 torr and the level of mercury in the arm connected to the container is
8.60 cm higher than the level of mercury open to the atmosphere? - correct answers First, know that
8.60 cm = 86.0 mm, which is equivalent to an 86.0 torr pressure difference between the atmosphere
and the container.
In this situation the pressure in the container is less than the atmosphere.
, How much less? 86 torr.
742 - 86 = 656 torr
An instrument used to measure the pressure of a gas in a laboratory is called a? - correct answers
Manometer, its in a large U formation with an open and closed end.
conversion of 1 atm to bars? - correct answers 0.98692 atm = 1 bar
(Nitrogen and hydrogen react to form ammonia according to the following equation:
N2(g)+3H2(g)→2NH3(g)
Consider these representations of the initial mixture of reactants and the resulting mixture after the
reaction has been allowed to react for some time).
If the volume is kept constant, and nothing is added to the reaction mixture, what happens to the partial
pressure of nitrogen during the course of the reaction? - correct answers If the volume is kept constant,
and nothing is added to the reaction mixture, what happens to the partial pressure of nitrogen during
the course of the reaction?
Because the number of nitrogen molecules decreases, the partial pressure of nitrogen must also
decrease.
What is gas pressure? - correct answers Gas pressure is the force exerted per unit area by gas molecules
as they strike the surfaces around them.
What causes gas pressure? - correct answers Gas pressure is caused by collisions of gas molecules with
surfaces or other gas molecules.
The volume of a gas is inversely proportional to the pressure of a gas is known as - correct answers
Boyle's Law
What volume (in mL) will a sample of F2 gas occupy in a syringe at 5.5 atm, if the F2 has a volume of 25.0
mL at 1.2 atm? - correct answers 5.5 mL
