Chemistry, 02.09.2019 21:30 graciegirl6662
Water standing in the open at 29.2°c evaporates because of the escape of some of the surface molecules. the heat of vaporization (548 cal/g) is approximately equal to εn, where ε is the average energy of the escaping molecules and n is the number of molecules per gram.
(a) find ε.
(b) what is the ratio of ε to the average kinetic energy of h2o molecules, assuming the latter is related to temperature in the same way as it is for gases?
Answers: 2
Chemistry, 22.06.2019 10:30
Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction
Answers: 1
Chemistry, 22.06.2019 12:00
What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?
Answers: 1
Chemistry, 22.06.2019 20:30
Select all the correct answers.which compounds have the empirical formula ch20? (multiple answers)a.c2h4o2b.c3h603c.ch2o2d.c5h1005e.c6h1206
Answers: 2
Chemistry, 23.06.2019 03:40
The following questions a24 - a26 relate to 100 ml of 0.0150 m solution of benzoic acid (c6h3cooh). ka(c6h3cooh) = 6.4 x 10^-5. what is the ph of the solution after the addition of 1 x 10^-3 moles of naoh? you may assume no volume change to the solution upon addition of the naoh.
Answers: 2
Water standing in the open at 29.2°c evaporates because of the escape of some of the surface molecul...
History, 23.05.2021 20:50
English, 23.05.2021 20:50
World Languages, 23.05.2021 20:50
Arts, 23.05.2021 20:50
History, 23.05.2021 20:50
Mathematics, 23.05.2021 20:50
Mathematics, 23.05.2021 20:50
History, 23.05.2021 20:50
Mathematics, 23.05.2021 20:50