________ law is used for detecting marsh gas in coal mines.
Boyle's
Grahams
Charles law
Rate law
1 atmosphere is equal to 1 ____________.
torr
pascal
cm
mm
The temperature of _________ is called as absolute zero of temperature.
-2730c
O0c
250c
2730c
The measurable properties of gas are:
shape and volume
pressure and shape
volume and pressure
none of these
Lighter gases diffuse ___________ behaviour gases.
Faster than
Slower than
Easier than
Same as
According to Boyle's law ,''The volume of a given mass of gas is inversely proportional to it's ___________ at any given temperature .
pressure
volume
mass
If P1=3atm,V1=2.0L,P2 =0.5atm,V2 = ? (P1=initial pressure of the gas ,P2 =final pressure of the gas ,V1 =initial volume of the gas,V2= final volume of the gas ).
6L
12L
8L
10L
A sealed, rigid container is filled with three ideal gases: A, B and C. The partial pressure of each gas is known. The temperature and volume of the system are known. What additional information is needed to determine the masses of the gases in the container?
The average distance travelled between molecular collisions
The inter molecular forces
The volume of the gas molecules
The molar masses of the gases
Temperature is measured in units of ___________.
Pascal
Joules
Kilograms
Kelvin degrees
At mountain tops, pressure of air is ____________ that at sea level.
greater than
lower than
equal to
constant
