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Kopp's rule is useful for the determination of  
A.  molal heat capacities of gases. [Wrong Answer] 
B.  heat capacities of solids. [Correct Answer] 
C.  activation energy. [Wrong Answer] 
D.  heat capacities of gases. [Wrong Answer] 
View Answer
Explanation:
Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result 
Also Read Similar Questions Below :
⇒ The vapor pressure of water at 100°C is
100N/m^{2}
76 cms of Hg
13.6 cms of Hg
760 mm wc
⇒ With increase in the temperature of pure (distilled) water, its
pOH decreases and pH increases.
pOH and pH both 4ecreases.
pH and pOH both increases.
pH decreases and pOH increases.
⇒ Na_{2}SO_{4}. 10H_{2}O crystals are formed by cooling 100 Kg of 30% by weight aqueous solution of Na_{2}SO_{4}. The final concentration of the solute in the solution is 10%. The weight of crystals is
20
32.2
45.35
58.65
⇒ Atmospheric pressure corresponds to a hydrostatic head of
13.6 cms of Hg
34 ft ofH_{2}O
1 metre of H_{2}O
13.6 metres of Hg
⇒ Addition of a nonvolatile solute to a solvent produces a __________ in its solvent.
freezing point elevation
boiling point depression
vapor pressure lowering
all (a), (b) & (c)
⇒ Number of gm moles of solute dissolved in one litre of a solution is called its
equivalent weight
molarity
molality
normality
⇒ If 1 Nm^{3} of O_{2} contains 'N' number of molecules, then number of molecules in 2Nm^{3} of SO_{2} will be
N
N/2
2N
4N
⇒ Viscosity of atmospheric air may be about __________ centipoise.
0.015
1.5
15
150
⇒ Number of gm moles of solute dissolved in 1 kg of solvent is called its
normality
molarity
molality
formality
⇒ The boiling points for pure water and pure toluene are 100°C and 110.6°C respectively. Toluene and water are completely immiscible in each other. A well agitated equimolar mixture of toluene and water are prepared. The temperature at which the above mixture will exert a pressure of one standard atm. is
less than 100°C
100°C
between 100 and 110°C
110.6°C
⇒ The viscosity of water at room temperature may be around one
centipoise
poise
stoke
both (b) &(c)
⇒ An azeotropic solution of two liquids has boiling point lower than either of them, when it
is saturated.
is unsaturated.
shows negative deviation from Raoult's law.
shows positive deviation from Raoult's law.
⇒ For an ideal solution, the total vapor pressure varies __________ with the composition(expressed as mole fraction).
inversely
exponentially
linearly
negligibly
⇒ The osmotic pressure of a solution is directly proportional to the
lowering of vapor pressure.
molecular concentration of the solute.
absolute temperature of a given concentration.
all (a), (b) and (c).
⇒ As per Kirchoff s equation, the heat of reaction is affected by the
pressure
volume
temperature
molecularity
⇒ 1 ata is equivalent to
1 atm.
10 torr
0.98 Pascal
1 kgf/cm^{2}
⇒ Pick out the wrong unit conversion.
1 J = 1 W.Second = 10^{7} ergs = 9.5 x 10^{4} BTU = 0.2389 calorie
1 Watt = 746 hp


⇒ Diffusion is that property by virtue of which a perfume bottle when opened up in a room, makes the whole room fragrant with its smell. If a perfume 'X' diffuses twice as fast as another perfume 'Y'; what is the molecular weight of 'Y', if the vapor density of gas 'X' is 2 ? Molecular weight of gas 'X' is to be assumed to be 2.
2
4
8
16
⇒ During a phase change process like sublimation, vaporisation, melting etc., the specific __________ does not change.
enthalpy
Gibbs free energy
internal energy
entropy
⇒ Avogadro number is the number of molecules in one __________ of a gas.
gram
kilogram
gm.mole
litre
⇒ The latent heat of vaporisation
decreases with increased temperature.
decreases as pressure increases
becomes zero at the critical point.
all (a), (b) & (c).
⇒ S.T.P. corresponds to
1 atm. absolute pressure & 15.5°C.
760 mm Hg gauge pressure & 15.5°C.
760 torr & 0°C.
101.325 kPa gauge pressure & 15.5°C.
⇒ The pressure under which liquid and vapor can coexit at equilibrium is called the __________ vapor pressure.
limiting
real
saturated
normal
⇒ 1m^{3} is approximately equal to
28 litres
35 ft^{3}
4.5 litres
4.5 ft^{3}
⇒ A vapor whose partial pressure is less than its equilibrium vapor pressure is called a __________ vapor.
saturated
supersaturated
superheated
none of these
⇒ __________ kg of CaC0_{3} on heating will give 56 kg of CaO.
56 .
100
144
1000
⇒ With increase in temperature, the surface tension of water
increases
decreases
remains constant
increases linearly
⇒ If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will
be reduced to l/4th.
increase four times.
increase two times.
none of these.
⇒ The temperature at which a real gas obeys Boyle's law is termed as the
triple point
Boyle's temperature
eutectic point
inversion temperature
⇒ The unit of dynamic viscosity is
stoke
poise
gm/cm sec.
both (b) & (c)
⇒ The vapor pressure of water at 100°C is
100N/m^{2}
76 cms of Hg
13.6 cms of Hg
760 mm wc
⇒ With increase in the temperature of pure (distilled) water, its
pOH decreases and pH increases.
pOH and pH both 4ecreases.
pH and pOH both increases.
pH decreases and pOH increases.
⇒ Na_{2}SO_{4}. 10H_{2}O crystals are formed by cooling 100 Kg of 30% by weight aqueous solution of Na_{2}SO_{4}. The final concentration of the solute in the solution is 10%. The weight of crystals is
20
32.2
45.35
58.65
⇒ Atmospheric pressure corresponds to a hydrostatic head of
13.6 cms of Hg
34 ft ofH_{2}O
1 metre of H_{2}O
13.6 metres of Hg
⇒ Addition of a nonvolatile solute to a solvent produces a __________ in its solvent.
freezing point elevation
boiling point depression
vapor pressure lowering
all (a), (b) & (c)
⇒ Number of gm moles of solute dissolved in one litre of a solution is called its
equivalent weight
molarity
molality
normality
⇒ If 1 Nm^{3} of O_{2} contains 'N' number of molecules, then number of molecules in 2Nm^{3} of SO_{2} will be
N
N/2
2N
4N
⇒ Viscosity of atmospheric air may be about __________ centipoise.
0.015
1.5
15
150
⇒ Number of gm moles of solute dissolved in 1 kg of solvent is called its
normality
molarity
molality
formality
⇒ The boiling points for pure water and pure toluene are 100°C and 110.6°C respectively. Toluene and water are completely immiscible in each other. A well agitated equimolar mixture of toluene and water are prepared. The temperature at which the above mixture will exert a pressure of one standard atm. is
less than 100°C
100°C
between 100 and 110°C
110.6°C
⇒ The viscosity of water at room temperature may be around one
centipoise
poise
stoke
both (b) &(c)
⇒ An azeotropic solution of two liquids has boiling point lower than either of them, when it
is saturated.
is unsaturated.
shows negative deviation from Raoult's law.
shows positive deviation from Raoult's law.
⇒ For an ideal solution, the total vapor pressure varies __________ with the composition(expressed as mole fraction).
inversely
exponentially
linearly
negligibly
⇒ The osmotic pressure of a solution is directly proportional to the
lowering of vapor pressure.
molecular concentration of the solute.
absolute temperature of a given concentration.
all (a), (b) and (c).
⇒ As per Kirchoff s equation, the heat of reaction is affected by the
pressure
volume
temperature
molecularity
⇒ 1 ata is equivalent to
1 atm.
10 torr
0.98 Pascal
1 kgf/cm^{2}
⇒ Pick out the wrong unit conversion.
1 J = 1 W.Second = 10^{7} ergs = 9.5 x 10^{4} BTU = 0.2389 calorie
1 Watt = 746 hp


⇒ Diffusion is that property by virtue of which a perfume bottle when opened up in a room, makes the whole room fragrant with its smell. If a perfume 'X' diffuses twice as fast as another perfume 'Y'; what is the molecular weight of 'Y', if the vapor density of gas 'X' is 2 ? Molecular weight of gas 'X' is to be assumed to be 2.
2
4
8
16
⇒ During a phase change process like sublimation, vaporisation, melting etc., the specific __________ does not change.
enthalpy
Gibbs free energy
internal energy
entropy
⇒ Avogadro number is the number of molecules in one __________ of a gas.
gram
kilogram
gm.mole
litre
⇒ The latent heat of vaporisation
decreases with increased temperature.
decreases as pressure increases
becomes zero at the critical point.
all (a), (b) & (c).
⇒ S.T.P. corresponds to
1 atm. absolute pressure & 15.5°C.
760 mm Hg gauge pressure & 15.5°C.
760 torr & 0°C.
101.325 kPa gauge pressure & 15.5°C.
⇒ The pressure under which liquid and vapor can coexit at equilibrium is called the __________ vapor pressure.
limiting
real
saturated
normal
⇒ 1m^{3} is approximately equal to
28 litres
35 ft^{3}
4.5 litres
4.5 ft^{3}
⇒ A vapor whose partial pressure is less than its equilibrium vapor pressure is called a __________ vapor.
saturated
supersaturated
superheated
none of these
⇒ __________ kg of CaC0_{3} on heating will give 56 kg of CaO.
56 .
100
144
1000
⇒ With increase in temperature, the surface tension of water
increases
decreases
remains constant
increases linearly
⇒ If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will
be reduced to l/4th.
increase four times.
increase two times.
none of these.
⇒ The temperature at which a real gas obeys Boyle's law is termed as the
triple point
Boyle's temperature
eutectic point
inversion temperature
⇒ The unit of dynamic viscosity is
stoke
poise
gm/cm sec.
both (b) & (c)