The AHvap of a certain compound is 42.63 kJ mol- and its AS, is 72.79 J mol-1. K-. What is the boiling point of this compound? °C boiling point:

Below are particle-level representations of four different solutions. Water molecules are not shown. Each representation contains the same volume of solution?

- Suppose a small sample of pure X is held at  -236.°C and 2.0 atm. What will be the state of the sample (solid, liquid, or gas)? - Suppose the temperature is held constant at -236.°C but the pressure is decreased by 1.2 atm. What will happen to the sample (nothing, it will melt, it will freeze, it will boil, it will condense, it will sublime, or it will deposit)? - Suppose, on the other hand, the pressure is held constant at 2.0 atm but the temperature is increased by 137°C. What will happen to the sample (nothing, it will melt, it will freeze, it will boil, it will condense, it will sublime, or it will deposit)? All these are part of one question.

5.

Please solve the below questions using the attached diagram: If I had a quantity of this substance at a pressure 2.0 atm and a temperature of -150 degrees celsius, what phas change(s) would occur if I decreased the pressure to 0.25 atm?  At what pressure(s) would they occur?  (Note:  multiple answers needed for this question)

Chlorine trifluoride (ClF3) melts at -76.3 °C and boils at 11.8 °C at a constant pressure of 1 atm. What state of matter must a sample of chlorine trifluoride be in at 20°C and 1 atm?

Arrange the following in order of decreasing boiling point. Т HIC I H-C-c нн H-C Н Н I-O-I -С H H C-C-NH₂ H H-C-c Н Н Н I-о Н HHF FIC Н HTC H с I C I- -С-Н Н 1 Ч H 15 C-H Н Н Н H H H N С Н D KBr Н Н I-I H Н Н CH3 LICI Н нннннн HTC -Т Н 7 -C от Н IOI CIH с-с-н Н Н

For pentane, the AH° of vaporization is 26.22 kJ/mol and the AS° of vaporization is 87.88 J/ mol K. At 1.00 atm, what is the boiling point of pentane, in K?