Related Questions

Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.
A Proportional to
B Independent of
C Inversely proportional to
D Proportional to the square of
For a solid catalysed chemical reaction, the effectiveness of solid catalyst depends upon the __________ adsorption.
A Physical
B Chemical
C Both A and B
D Neither A nor B
The rate of forward reaction, at chemical equilibrium is____the rate of backward reaction.
A More than
B Less than
C Equal to
D Either B or C
The minimum energy required to allow a chemical reaction to proceed is termed as the 'threshold energy '. Chemical reaction with low activation energy are
A Always irreversible
B Insensitive to temperature changes
C Mostly irreversible
D Highly temperature sensitive
The coriolis component of acceleration depends upon
A velocity of slider
B angular velocity of the link
C all of the mentioned
D none of the mentioned
In a homogeneous solution, the activity co-efficient of a component depends upon the
A Pressure
B Composition
C Temperature
D All of the above
In a homogeneous solution, the fugacity of a component depends upon the
A Pressure
B Composition
C Temperature
D All of the above
The chemical bahaviour of an atom depends upon
A The number of protons in its nucleus
B The number of neutrons in the nucleus
C The number of electrons orbiting around the nucleus
D The number of nucleons in the nucleus
Fugacity of a component in an ideal gas mixture is euqal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at contant pressure and temperature __________ as its mole fraction increases.
A Decreases
B Decreases exponentially
C Increases
D Remains constant
Relative volatility varies with the concentration of component for an ideal solution. The relative volatity of a binary mixture may be defined as the ratio of vapor pressure of component 'A' to that of component 'B', when
A Only vapor phase follows Raoult's law
B Only liquid phase obeys Dalton's law
C Liquid phase obeys Dalton's law and vapor phase obeys Raoult's law
D Vapor phase obeys Dalton's law and liquid phase obeys Raoult's law

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