which statement correctly describes the relationship between a black body radioterapia it’s tmeptaute and the electromagnic radi
2 answers:
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Answer : The magnitude of the lattice energy for CsCl is, 667 KJ/mole
Explanation :
The steps involved in the born-Haber cycle for the formation of :
(1) Conversion of solid calcium into gaseous cesium atoms.
= sublimation energy of calcium
(2) Conversion of gaseous cesium atoms into gaseous cesium ions.
= ionization energy of calcium
(3) Conversion of molecular gaseous chlorine into gaseous chlorine atoms.
= dissociation energy of chlorine
(4) Conversion of gaseous chlorine atoms into gaseous chlorine ions.
= electron affinity energy of chlorine
(5) Conversion of gaseous cations and gaseous anion into solid cesium chloride.
= lattice energy of calcium chloride
To calculate the overall energy from the born-Haber cycle, the equation used will be:
Now put all the given values in this equation, we get:
The negative sign indicates that for exothermic reaction, the lattice energy will be negative.
Therefore, the magnitude of the lattice energy for CsCl is, 667 KJ/mole
Answer:
a) 1321.45 N
b) 1321.45 N
c) 2.66 m/s^2
d) 2.21*10^-22 m/s^2
Explanation:
Hello!
First of all, we need to remember the gravitational law:
Were
G = 6.67428*10^-11 N(m/kg)^2
m1 and m2 are the masses of the objects
r is the distance between the objects.
In the present case
m1 = earth's mass = 5.9742*10^24 kg
m2 = 497 kg
r = 1.92 earth radii = 1.92 * (6378140 m) = 1.2246*10^7 m
Replacing all these values on the gravitational law, we get:
F = 1321.45 N
a) and b)
Both bodies will feel a force with the same magnitude 1321.45 N but directed in opposite directions.
The acceleration can be calculated dividing the force by the mass of the object
c)
a_satellite = F/m_satellite = ( 1321.45 N)/(497 kg)
a_satellite = 2.66 m/s^2
d)
a_earth = F/earth's mass = (1321.45 N)/( 5.9742*10^24 kg)
a_earth = 2.21*10^-22 m/s^2