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Worksheetsgaseous state
Total questions: 35
Worksheet time: 18mins
Whether the gas has mass
yes
No
None of the above
What is an ideal gas
A gas obeys the gas laws
A gas does not obey the gas laws
A gas obeys only the Boyle's law
A gas which doesn't obey the Charles' law
Which law the following relation describes
PV= a constant
Charles's law
Boyle's law
Both the above
Avogadro's law
Identify the graph which describe the Charles' law
Which among the following is the equation for Avogadro's law
P1V1=P2V2
T=k*V
V1N1=V2N2
V1/n1=V2/n2
What is the value of R in calK-1mol-1
8.314
0.0821
8.314*107
1.987
What is Most probable velocity in gases
velocity possessed by maximum number of molecules
velocity possessed by fast moving particles
velocity possessed by slow moving particles
What is the significance of area under Maxwell-Boltzmann curve
The area will give the maximum fraction of molecules at a particular temperature
It will give the total number of molecules in the gas
it is a measure of molecules with high velocity
It is an indication of probability of molecules
What is the equation for rms velocity
πM8RT
M3RT
M2RT
How rms velocity is related to average velocity?
3π8μ
32μ
3.5μ
Which quantity is used to show the extent of variation of real gases from ideal behavior
compressibility factor
partial pressure
inversion temperature
continuity of state
what is the significance of Van der waal's constant 'a'
measure of effective size of the gas molecules
measure of the magnitude of the attractive forces among the molecules of the gas
measure of deviation from ideal behavior
continuity of state
what is the form of van der Waal's equation at high pressures
PV=nRT
P(V-b)=RT
(P+a/V2)(V-b)=nRT
continuity of state
Which law the following relation describes
PV= a constant
Charles's law
Boyle's law
Both the above
Avogadro's law
Gases can be defined by the following statement:
Gases freely flow to fill the container they are in.
Gases have neither a defined volume nor shape.
Gases are highly compressible.
All of the above
The relationships between the following four variables are known as the gas laws.
pressure (P), depth (D, in cm), temperature (T), and amount (n, in moles)
pressure (P), volume (V), temperature (T), and amount (n, in moles)
height (H, in cm), volume (V), temperature (T), and amount (n, in moles)
pressure (P), volume (V), length (L, in cm), and amount (n, in moles)
The scientific principle that, so long as temperature is kept constant, the volume (V) of a fixed amount of gas is inversely proportional to its pressure (P) is called:
Boyles's Law
Charles's Law
Avogadro's Law
Ideal Gas Equation
Suppose you have two identical birthday balloons, with one filled with the gas helium and the other blown up by you. Assuming they’re both filled to the same amount, these balloons will have the same number of molecules.
True
False
Which of the following is not a common state of matter under ambient conditions?
Liquid
Solid
Plasma
The term “fluids” collectively refers to
solid and gases
liquid and gases
Only Liquid
Solids and liquid
Solids that have an organized, regular repeating structure are
crystalline
amorphous
colloidal
Emulsion
Molecules of a gas have
very weak intermolecular forces of attraction between the molecules
strong intermolecular forces of attraction between molecules yet are able to shift positions
weak intermolecular forces of attraction between molecules yet are set in fixed positions
None of the above
At a pressure of 1.0 atm, when water is heated to 100°C it
freezes
vapurises
melts
sublimes
What is the unit of Z
s-1
s
m/s
m-3s-1
The value of the compressibility factor (Z) for an ideal gas is equal to
R
1.5 R
2
1
A gas obeys the vander Waals equation. It will approach ideality at
high pressure
low values of PV products
extremely low pressure
low temperature
According to kinetic molecular theory of gases, the average kinetic energy
is proportional to temperature
decreases with rise in temperature
is always constant for a particular gas
is zero at 0oC
The temperature at which the real gas approaches ideal behaviour over an appreciable range of pressure is called-----------temperature.
(a)
The vander Waals constants are
a
b
c
d
Critical Temperature of CO2 is ......................
31.1 K
31.1 0C
304.1 0C
273 K
A gas can be liquefied by
Increasing temperature
Decreasing temperature
A real gas can behave as an ideal at
Low temperature
High temperature
High pressure
At low temperature and high pressure a real gas deviates from ideal behavior.
True
False
S.I. unit of vander Waals constant b is m3/mol
True
False
Gases can be defined by the following statement:
Gases freely flow to fill the container they are in.
Gases have neither a defined volume nor shape.
Gases are highly compressible.
All of the above
