Problem 21E

(a) Define the term lattice energy. (b)Which factors govern the magnitude of the lattice energy of an ionic compound?

Econ 10A: Problem Set 2 (1) Luke’s utility is U(x ,x ) = 2x + ln x . 1 2 1 2 (a) What is Luke’s marginal rate of substitution (MRS) (b) Does Luke have a diminishing marginal rate of substitution (2) Tom, Dick, and Harry, the only three people on a desert island with two consumption goods, apples and bananas, have utility functions U , U , anT D U H respectively, where: UT(xa,xb) = 6x a9x b U Dx ax b = 8x +a2x b 2 UH(x ax b = x ab (a) Relative to Tom, does Dick require more bananas, less bananas, or the same number of bananas to give away an apple Why (b) Suppose Harry has 3 apples and 2 ban