What kind of intermolecular forces act between an acetylene (C2H2) molecule and
ID: 1061980 • Letter: W
Question
What kind of intermolecular forces act between an acetylene (C2H2) molecule and a methane (CH4) molecule? Note: If there is more than one type of intermolecular force that acts, be sure to list them all, with a comma between the name of each force. Study the following phase diagram of Substance X. 20 solid liquid gas temperature (K) Use this diagram to answer the following questions. suppose a small sample of pure X is held at C and 21.3 atm (choose one) What will be the state of the sample? suppose the temperature is held constant at -51. GC but the pressure (choose one) is decreased by 10.5 atm. What will happen to the sample? Suppose, on the other hand, the pressure is held constant at 21.3 atm but the temperature is decreased by 56. OC. What will happen to the (choose one) sample? It will freeze. It will boil. It will condense It will sublime It will deposition suppose the temperature is held constant at-51. °C but the pressure (choose one) is decreased by 10.5 atm. What will happen to the sam It will melt. suppose, on the other hand, the pressure is held constant at 21.3 atm It will freeze. It will boil. but the temperature is decreased by 56. C. What will happen to the It will condense. sample? It will sublime. It will deposition. suppose a small sample of pure X is held at -51. C and 21.3 atm. (choose one) What will be the state of the sample? solid quid suppose the temperature is held constant at -51. OC but the pressure gas (choose one) is decreased by 10.5 atm. What will happen to the sample?Explanation / Answer
From the phase diagram, at temperature = -51 oC = 273-51 = 222 K and pressure = 21.3 atm. In graph, mark a point where x = 222 K and y = 21.3 atm. The state of the sample can be determined. Here, the state of the sample is liquid.
at temperature = -51 oC = 273-51 = 222 K and pressure = 21.3-10.5 = 10.8 atm, the state of the sample is gas. So, the sample is changing from liquid to gas, which occurs on boiling. So, answer is it will boil.
at temperature = 56 oC = 222-56 = 166 K and pressure = 21.3 atm, the state of the sample is liquid. So, the sample is remaining from liquid to liquid. So, answer is nothing.
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