Related Questions

At higher temperature, molal heat capacities of most of the gases (at constant pressure) __________ with increase in temperature.
A Increases
B Decreases
C Remains unchanged
D Increases linearly
Except for monoatomic gases, the molal heat capacity at constant volume for all gases is __________ Kcal/Kg mole.° K.
A 3
B > 3
With increase in temperature, the atomic heat capacities of all solid elements
A Increases
B Decreases
C Remains unchanged
D Decreases linearly
The condensing pressure due to the presence of non-condensable gases, as compared to that actually required for condensing temperatures without non-condensable gases,
A Will be higher
B Will be lower
C Will remain unaffected
D May be higher or lower depending upon the nature of non-condensable gases
According to Regnault's law, the specific heat at constant pressure (cp) and specific heat at constant volume (cv) _________ with the change in pressure and temperature of the gas.
A Change
B Do not change
C Both (A) and (B)
D None of these
The atomic heat capacities of all solid elements __________ with decrease in temperature.
A Increases
B Decreases
C Remains unchanged
D Approach zero at 0°C
In case of non-ideal gases and liquids, the molal diffusivity
A Varies inversely as the pressure
B Varies directly as the pressure
C Is independent of pressure
D Is equal to the volumetric diffusivity
The heat capacity of a solid compound is calculated from the atomic heat capacities of its constituent elements with the help of the
A Trouton's rule
B Kopp's rule
C Antonie equation
D Kistyakowsky equation
Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures.
A 350
B 750
C 1050
D 1250
Which of the following assumes constant molal vaporisation and overflow?
A McCabe-Thiele method
B Ponchan-Savarit method
C Enthalpy concentration method
D Plate absorption column

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