In the gas equation PV = xT, x is a constant. The value of the constant depends upon
the quantity of gas
the quality of gas
type values of T and P
None of these
Correct Answer :
A. the quantity of gas
Related Questions
Absolute zero is the temperature at which
water freezes
all gases become liquid
all substances are solid
molecular motion ceases
Which of the following phrases would be incorrect to use?
An atom of an element
An atom of a compound
A molecule of a compound
A molecule of an element
If the tetrahedral sites in ccp arrangement of negative ions (Y) were half filled with cation (X), the empirical formula of the compound would be
XY
The vapour density of pure ozone would be
32
8
12
24
Which of the following would you expect to affect the vapour pressure of a liquid?
Inter-molecular forces in the liquid
Volume of the liquid in the liquid-vapour equilibrium
Volume of the vapour in the liquid-vapour equilibrium
The size of the container in which liquid-vapour equilibrium is establishe
The molecular weight of a volatile liquid can be determined by
Dumas' method
Victor Meyer's method
Cryoscopic method
Osmotic pressure
At a given temperature and pressure 2 volumes of A combine with 5 volumes of B to form 2 volumes of C, and 1 volume of A combines with one volume of B to form 2 volumes of D. Then the formula of C is
The vol. of 20 gms of nitrogen at N.T.P.
16 litres
36 litres
8 litre
32 litres
In NaCl type structure, the coordination number of the cation and anion are
6 and 4
6 and 6
4 and 4
8 and 4
The number of atoms per unit cell in bcc arrangement is
1
4
3
2
An example of covalent solid is
diamond
NaCl
Copper
Molecular formula of D in the above case is
AB
The vapour density of completely dissociated sociated would be
Determined by the amount of solid used in the experiment
Triple to that of
Half of that
Slightly less than half of that of
The limiting radii ratio for the tetrahedral geometry is
0.155
0.444
0.732
0.225
In the wurtzite structure sulphur atoms have
cubic arrangement
hexagonal dose packed arrangement
body centred arrangement
None of these
In the process of sublimation, the substance transforms directly
from the solid state to the liquid state
from the liquid state to gaseous state
from the solid state to gaseous state
from the liquid state to solid state
7.Which of the following sets of conditions represent the easiest way to liquefy a gas?
Low temperature and high pressure
High temperature and low pressure
High temperature and low pressure
None of these
22.4 litre of any gas at N.T.P. will contain
One gram equivalent
One gram atomic weight
One gram atom
One gram molecule
Which of the following statement wrong?
In solid state molecules, atoms or ions are held with a strong force of attraction and are in a fixed position
In liquid state the molecules, atom or ions are held with a strong force and have a restricted motion
In gaseous states, the molecules are randomly arranged and are apart from each other
Solid, liquid and gaseous states have different movement is particles
The number of atoms in 0.004 gm of magnesium is close to
36x
5 x
6.02 x
How many nearest neighbours are there in an octahedral hole of a close packed structure
4
6
8
12
Four 1 litre flasks are separately filled with hydrogen, helium, oxygen and ozone gases at the same temperature and pressure. The ratio of total number of atoms of these gases present in the different flasks would be
1:1:1:1
1:2:2:3
2:1:2:3
3:2:2:1
Vapour density of a gas is 35.5. The volume occupied by 3.55 gm of the gas at NTPis
1.12 litres
2.24 litres
22.4 litres
11.2 litres
The space occupied by spheres in ccp arrangement is
74.06%
68.05%
60.4%
52.4%
Which of the following will have low heat of fusion?
a molecular solid
an ionic solid
a metallic solid
a network of covalent solid
The best electrical conductor of the following is
(s)
Si(s)
NaCl (fused)
(I)
At what temperature, the root mean square velocity of oxygen molecules is equal to that of at 27°C?
150°C
150°K
27°C
None of these
An element has atomic weight 24 and equivalent weight 11.9. Its valency is
1
2
3
4
The vol. of 20 gm. of hydrogen at N.T.P. is
22.4 litres
112 litres
12 litres
224 litres
The number of molecules is 4.25 g of ammonia are approximately
3.5 x
2.5 x
1.5 x
0.5 x