Kinetic energy is stored in a stretched rubber
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:
10.6 mA
Explanation:
t = time interval = 1.00 s
q = magnitude of charge on each ion = 1.6 x 10⁻¹⁹ C
n₁ = number of Na⁺ ions = 2.68 x 10¹⁶
q₁ = charge due to Na⁺ ions = n₁ q = (2.68 x 10¹⁶) (1.6 x 10⁻¹⁹) = 0.004288 C
n₂ = number of Cl⁻ ions = 3.92 x 10¹⁶
q₂ = charge due to Cl⁻ ions = n₂ q = (3.92 x 10¹⁶) (1.6 x 10⁻¹⁹) = 0.006272 C
i₁ = Current due to Na⁺ ions = =
= 0.004288 A
i₂ = Current due to Cl⁻ ions = =
= 0.006272 A
Current passing between the electrodes is given as
i = i₁ + i₂
i = 0.004288 + 0.006272
i = 0.01056 A
i = 10.6 x 10⁻³ A
i = 10.6 mA
Answer:
Explanation:
Given Data
Angle α=5°
height h=800800 feet
To find
Distance r
Solution
As we Know that