Which molecule or ion does not have trigonal pyramidal molecular geometry? PF_3
ID: 1011093 • Letter: W
Question
Which molecule or ion does not have trigonal pyramidal molecular geometry? PF_3 BF_3 AsF_3 NF_3 IO^-_3 Which of the following statements concerning liquids is incorrect? Non-volatile liquids have low vapor pressures at room temperature. Liquid molecules move slowly compared to solids. The molecules of a liquid are in constant random motion. Liquids are relatively incompressible. The volume of a liquid changes very little with pressure. Which of the following processes must exist in equilibrium with the evaporation process when a measurement of vapor pressure is made? condensation boiling vaporization fusion sublimation A liquid placed in a closed container will evaporate until equilibrium is reached. At equilibrium, which of the following statements false? Liquid molecules are still evaporating. The boundary (meniscus) between liquid and vapor disappears. The partial pressure of the vapor is constant. The partial pressure exerted by the vapor molecules is called the vapor pressure of the liquid. The number of vapor molecules remains essentially constant. If more ice is added to an ice-water mixture at equilibrium, the temperature will decrease somewhat. the vapor pressure of the water will decrease. the vapor pressure of the water will remain constant. the temperature will increase somewhat. the vapor pressure of the water will rise. The normal boiling point of a liquid is the temperature above which the substance cannot exist as a liquid regardless of the pressure. the temperature at which the amounts of liquid and gas are equal. the temperature at which the vapor pressure equals 760 mmHg. the temperature at which all three phases are in equilibrium. the only temperature at which there can be equilibrium between the liquid and gas states.Explanation / Answer
19. Th moelcule which does not have a trigonal pyramidal geometry is,
B) BF3
20. The incorrect statement regarding liquids would be,
B) Liquis molecules move slowly compared to solids
21. The process that must exist in equilibrium with evaporation when vapor pressure measurement is done is,
A) condensation
22. A liquid will evaporate and will reach equilibrium with its vapor, the false statement for this process is,
A) the boundary between liquid and vapor disappears
23. If more ice is added to ice-water mixture at equilibrium,
A) The temerature will decrease
24. The normal boiling point of a liquid is,
C) the temperature at which the vapor pressure equals 760 mmHg.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.