Physics, 17.03.2020 05:23 jayjay2006
The potential energy of two atoms in a diatomic molecule is approximated by U(r)=a/r^1/2-b/r^6, where r is the spacing between atoms and a and b are positive constants.
a. Find the force F(r) on one atom as a function of r.
b. Find the equilibrium distance between the two atoms. Express your answer in terms of the variables a and b. Is this equilibrium stable?
c. Suppose the distance between the two atoms is equal to the equilibrium distance found in part (b). What minimum energy must be added to the molecule to dissociate it - that is, to separate the two atoms to an infinite distance apart, U(r=[infinity]) = 0? This is called the dissociation energy of the molecule. Express your answer in terms of the variables a and b.
d. For the molecule CO, the equilibrium distance between the carbon and oxygen atoms is 1.13 x 10^-10m and the dissociation energy is 1.54 X 10^-18J per molecule. Find the value of the constant a. Find the value of the constant b.
Answers: 2
Physics, 21.06.2019 19:40
An ideal spring has a spring constant (force constant) of 2500 n/m, is stretched 4.0 cm, how much elastic potential energy does it possess? (a) 3j (b) 0.00j (c) 1j (d) 2j (e) 4j
Answers: 1
Physics, 22.06.2019 11:50
Select all that applywhat are some basic resources a family is expected to provide for children? educationclothesspending
Answers: 2
Physics, 22.06.2019 15:00
10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation 2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!
Answers: 3
Physics, 22.06.2019 18:50
8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.
Answers: 3
The potential energy of two atoms in a diatomic molecule is approximated by U(r)=a/r^1/2-b/r^6, wher...
English, 11.11.2020 14:00
Arts, 11.11.2020 14:00
History, 11.11.2020 14:00
English, 11.11.2020 14:00
Arts, 11.11.2020 14:00
Arts, 11.11.2020 14:00
History, 11.11.2020 14:00
History, 11.11.2020 14:00
Social Studies, 11.11.2020 14:00
English, 11.11.2020 14:00
World Languages, 11.11.2020 14:00
Biology, 11.11.2020 14:00