Fixed-time method for uncatalyzed reactions. (a) Variation of [P] as a function of time for different initial concentrations of [A]0. (b) Variation of amount of P formed at fixed time tf with initial concentration of A.
Variable-time method for uncatalyzed reactions. (a) Variation of [P] as a function of time for various initial concentrations of [A]0. (b) Variation of 1t[P]f required to reach a fixed value of product formed [P]f with initial concentration of A.
Map showing the tectonic structure of the Earth's lithosphere, which is composed of about 10 rigid plates, each moving as a distinct unit. (After J. F. Dewey, Plate tectonics, Sci. Amer., 226(5):56–68, 1972)
Geology of the North Atlantic Ocean. (a) Physiographic divisions of the ocean floor. (b) Principal morphologic features along the profile between North America and Africa. (Modified from B. C. Heezen et al., GSA Spec. Pap. 65, 1959)