Geography
Geography, 10.10.2019 01:00, sylviaangelinn

(w) a liquid boils when its saturation vapor pressure is equal to the atmospheric pressure

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Chemistry, 31.07.2019 03:30, itislyz
Water boils at 100 ˚c at atmospheric pressure, i.e. at sea level (101,325 pa). the boiling point is defined as the temperature at which the vapor pressure of water is equal to the atmospheric pressure. this has consequences for cooking in places like denver and santa fe where it takes quite a bit longer to make a hard-boiled egg than it would in new york. if the vapor pressure of water obeys the antoine equation (below), and the albumen in an egg needs to reach 90 ˚c for the protein to coagulate, at what height would it be impossible to hard boil an egg?
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Chemistry, 27.08.2019 03:30, lindseyr190
Chloroform, chcl3, was once used as an anesthetic. in spy movies it is the liquid put in handkerchiefs to render victims unconscious. its vapor pressure is 197 mmhg at 23 degrees c and 448 mmhg at 45 degrees c. estimate its a. heat of vaporization b. normal boiling point i calculated the heat of vaporization to be 29.3 kj/mol. i'm having some trouble figuring out the normal boiling point, however. i know that the normal boiling point is when, at 1 atm, a liquid boils at a temperature at which its vapor pressure is equal to the pressure above its surface. so p1=p2=1 atm, if p1= vapor pressure and p2= atmospheric pressure/pressure above surface. i figured i could plug this into pv=nrt and solve, but i'm not given a lot of information. i considered assigning arbitrary values for n and v, so i would have t= (1.00 atm)(1.00 l)/(1.00 ) but is that really the best way to do this problem, or would it even work at all? i would think you could use the clausius-clapeyron equation, just as you did for delta h vap, but this time one of the ps will be 760 mm and calculate t for that p. you, that makes sense, but how do i account for p2 and t2 in the equation if i don't know those values either? but you have two vapor pressures at two temperatures. i would pick 23 c (change to kelvin, of course) and 197 mm for t1 and p1. then 760 mm and t2 for the others. you have all of the other numbers. check my thinking. oh, of course, i had completely forgotten about that. you.
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Chemistry, 08.11.2019 19:31, ashtonbillups
When the vapor pressure of a liquid is equal to the atmospheric pressure, the liquid a. has no observable changes. c. evaporates. b. boils vigorously. d. begins to boil.
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