From the phase diagram of pure component, a non-condensable gas is found at
CHEE2015 - Phase Equilibria of Pure Fluids

Quiz
•
Science, Physics, Chemistry
•
University
•
Hard
IANATUL KHOIROH
Used 19+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Above the critical point.
Below the critical point.
On the critical point.
On the equilibrium line.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Incorrect statement about a phase diagram of pure substance is
Phase diagram are based on equilibrium conditions.
Phase diagrams enable to view the properties of two or more phases as a function of temperature, pressure and other variables.
For phase equilibrium, it is assumed that the phase remain invariant.
The degree of freedom for liquid phase equals to 1.
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
If the vapour and liquid of a pure component are in equilibrium, the equilibrium pressure is called
partial pressure.
vapour pressure.
liquid pressure.
none of the mentioned.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Water will _______ on melting process and has the fusion curve with a _______ slope.
contracts, negative
contracts, positive
expands, negative
expands, positive
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The vapor pressure of carbon tetrachloride (CCl4) at 40.0 °C is found to be 213 mmHg and 836 mmHg at 80.0 °C. What is the enthalpy of vaporization in kJ/mol?
(R = 8.314 J/mole K)
31.4
3.14
0.314
314
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The molar enthalpy of vaporization of hexane (C6H14) is 28.9 kJ/mol, and its normal boiling point is 68.73 °C. What is the vapor pressure of hexane at 25 °C?
(R = 8.314 J/mole K)
17.1 torr
760 torr
171 torr
780 torr
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Below are the assumptions used in the Clausius - Clapeyron equation, except:
Molar volume of liquid is much smaller than vapour.
Vapour phase is an ideal gas.
Heat of vapourization is independent of temperature.
It only applicable for vapor pressure curve.
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