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Chapter 5 Gases

Multiple Choice

An instrument used to atmospheric pressure is called a Barometer
An instrument used to measure the pressure of a gas in a laboratory is called a Manometer
An instrument used to measure blood pressure is called a Sphygmomanometer
The volumes of a gas is proportional to the temperature of a gas is known as Charles's Law
The volumes of a gas is proportional to number of moles of a gas is known as Avogadro's law
The volume of a gas is inversely proportional to the pressure of a gas is known as Boyle's law
A scuba diver experiences _____________ as she descends into the ocean water increase of 1 atm for each 10 m of depth
Define hypoxia. Oxygen starvation
Define vapor pressure partial pressure of water in a gaseous mixture
The total pressure f a gas mixture is the sum of the partial pressure of its components is known as Dalton's law
A mixture of 1.0 mol He and 1.o mol Ne are at STP in a rigid container. What is true? Both gases have the same average kinetic energy
Which statement is TRUE about kinetic molecular theory? The collisions of particles with one another is completely elastic
The rate of effusion of two different gases is known as Graham's law
Define Diffusion. Gas molecules spread out in a concentration gradient
The rate of effusion of oxygen to an unknown gas is 0.935. What is the other gas? Gas with the highest average speed at 400 K N2
At very high pressures, a gas will occupy a larger volume than predicted by the ideal gas law
At low temperatures, intermolecular forces becomes important and the pressure of a gas will be lower than predicted by the ideal gas law
What compound will behave LEAST like an ideal gas at low temps? SO2
This equation is used to calculate the properties of a gas under nonideal conditions. van der Waal's equation
Give the gas that is the lowest percent by volume in dry gas CO2
Boyle's Law P1V1 = P2V2
Charles's Law V1T1 = V2T2
Avogadro's Law V1n1 = V2n2
Ideal Gas Law PV = nRT
Dalton's Law PT = PA +PB + PC..
If the pressure in a gas container that is connected to an open-end U-tube manometer is 116 kPa and the pressure of the atmosphere at the open end of the tube is 752 mmHg, the level of mercury in the tube will be 118 mm higher in the arm open to the atmosphere
Give the temperature and pressure at STP. 0 C and 1.00 atm
Gas samples would be most likely to behave ideally under the stated conditions? Ar at STP
Sample with the greatest volume at STP 22 g He
Samples with lowest pressure if they are all at the same temperature and in identical containers (same volume) 15 g Kr
Sample with the greatest density at STP SF6
Identify the gas particle that ravels the fastest H2
Identify the gas particle that ravels the slowest CO
Gas w/ the lowest average speed at 25C Kr
Created by: karmabites



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