Consider the equilibrium reaction described in Problem 14.23. A quantity of 2.50 g of PCl5 is placed in an evacuated 0.500-L flask and heated to 250°C. (a) Calculate the pressure of PCl5, assuming it does not dissociate. (b) Calculate the partial pressure of PCl5 at equilibrium. (c) What is the total pressure at equilibrium? (d) What is the degree of dissociation of PCl5? (The degree of dissociation is given by the fraction of PCl5 that has undergone dissociation.)

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s

Multiply or divide to make this english distance conversion. 174 inches = feet (14.5, 58, 2,088, 23)

On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)