Related Questions

With increase in the solute concentration, the specific heat of aqueous solutions
A Increases
B Decreases
C Remains unchanged
D Either A or B; depends on the type of solution
The temperature at which a gas, when subjected to Joule-Thomson expansion, neither cools or heats up, is termed as the __________ temperature. Above this temperature the gas heats up on throttling and below this the gas cools down.
A Isotactic
B Saturation
C Inversion
D Throttling
In case of a ternery system involving two liquid components and a solute, the ratio of the concentration of the solute in the two phases at equilibrium is called the distribution co-efficient. The distribution co-efficient depends upon the
A Solute concentration
B Temperature
C Both A & B
D Neither A nor B
The gas constant (R) is equal to the __________ of two specific heats.
A Product
B Sum
C Difference
D Ratio
As compared to air standard cycle, in actual working, the effect of variation in specific heats is to
A Increase maximum pressure and maximum temperature
B Reduce maximum pressure and maximum temperature
C Increase maximum pressure and decrease maximum temperature
D Decrease maximum pressure and increase maximum temperature
The ratio of two specific heats of air is equal to
A 0.17
B 0.24
C 0.1
D 1.41
The index of compression ‘n’ tends to reach ratio of specific heats ‘y’ when
A Flow is uniform and steady
B Process is isentropic
C Process is isothermal
D Process is isentropic and specific heat does not change with temperature
The ratio of molar specific heats for mono-atomic gas is
A 1
B 1.4
C 1.67
D 1.87
When dilute aqueous solutions of two salts are mixed, the process is associated with
A Decrease in temperature
B Increase in temperature
C No change in temperature
D Change in temperature which is a function of composition
Those solutions in which there is no volume change upon mixing the components in the liquid state and which, when diluted do not undergo any heat change (i.e. heat of dilution is zero), are called __________ solutions.
A Ideal
B Real
C Isotonic
D None of these

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