And More Concepts. a. i. Define the term \"lattice energy\" as used for ionic co
ID: 520163 • Letter: A
Question
And More Concepts. a. i. Define the term "lattice energy" as used for ionic compounds. ii. List the two major variables that determine the magnitude of the "lattice energy" in an ionic compound. A) _____ B) _____ b. Why are X-rays suitable for the determination of crystal structures _____ c. What does use of the barometric formula accomplish? _____ d. Define effusion. _____ What do the letters r, m, s in u_rms stand for? Or provide a mathematical expression for u_rms _____ What is a parallelepiped? _____Explanation / Answer
Lattice energy of a compound is the energy released when the component ions are brought together from infinity to form 1 mol of the crystal lattice.
Charge and ionic radius of the ions are the two factors affecting lattice energy.
b)The wavelength of X-ray is as the same order of the internuclear distance between atoms in the crystal. Hence it is used
C) Using barometric formula, we can find the variation of pressure with height.
D)The process of movement of gas through pores having diameter smaller than the mean free path of gas molecules.
E)rms stands for root mean squared. Urms =3RT/MW
R = gas constant
T= Temperature
MW = molecular weight
F) A solid bounded by six parallelogram faces .