Costa et al. proposed using a “multiscale” variant of this quantity to classify patients with heart failure over time. E. T. Jaynes argued for a connection between the physical and mathematical definitions of this quantity and formulated a principle named for maximizing it. A form of this quantity defined by taking the trace of “rho times the (15[1])logarithm of rho” (15[1])defines the amount of (*) information (10[1])in a quantum system. Assuming particle number and volume are (10[1])held constant, temperature equals the reciprocal of the derivative of this quantity with respect to internal energy. (10[1])For a monatomic ideal gas, this quantity can be calculated using the Sackur-Tetrode equation. (10[1])Ludwig Boltzmann defined this quantity as proportional to the logarithm of the number (10[1])of microstates. For 10 points, name this measure of disorder in a system. ■END■ (10[1])