subject
Engineering, 26.10.2021 14:00 roseemariehunter12

In an ionically bonded solid the force between two ions is given by where r is the distance between the ions, b and c are constants where b = 1.2x10-28 N·m2 and c = 1.8x10-105 N·m10 . (a) Identify the attractive and repulsive terms in the expression.
(b) Determine the ion separation in Ã… in the solid.
(c) Determine the energy in eV required to separate the ions in the solid to an infinite distance apart.
(d) Sketch E versus r curve for the solid. Label the equilibrium separation and energy minima.
(e) What physical properties would you measure in order to check your answers?

ansver
Answers: 3

Another question on Engineering

question
Engineering, 04.07.2019 18:10
Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
Answers: 3
question
Engineering, 04.07.2019 18:10
Ifa component is made of two or more materials with different modulus of elasticity (e), it is called a composite member and we calculate the factor·n". mention the formula for calculating n". also, ifn> 1, explain what will happen to the 1. transformed.gi) ifn 1, what will happen to the material when transformed material when
Answers: 1
question
Engineering, 04.07.2019 19:10
Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?
Answers: 3
question
Engineering, 04.07.2019 19:20
In the winter, in order to keep the classroom steadily at 68 f before 10 pm, heating with an average rate of 42,000 btu/hr is provided. assume the outdoor temperature maintains at 32°f, determine the electrical power (kw) required to (a) operate a reversible heat pump (b) operate a real heat pump with a cop (7) of 4.5 and (c) operate an electrical-resistance heater.
Answers: 3
You know the right answer?
In an ionically bonded solid the force between two ions is given by where r is the distance between...
Questions
question
Computers and Technology, 05.10.2019 09:01