The probability for transitions that lack this property in a two-level system is equal to e to the square of the off-diagonal element of the Hamiltonian divided by h-bar times a constant. Action-angle variables can be used to determine quantities named with this adjective that stay constant as time goes to infinity. According to a theorem named for this adjective, (15[1])a physical system stays in (-5[1])the same eigenstate (-5[1])if the Hamiltonian is perturbed slowly. (15[1])Two (15[1])(*) isothermal (10[1])processes along with (-5[1])two processes (10[1])of this type make up the Carnot cycle. (10[1])Heat (10[1])capacity at (10[1]-5[1])constant (-5[1])pressure (10[1])is divided by heat capacity at (10[1]-5[2])constant (10[1])volume to give an “index” named (10[2])for (10[1])this adjective. (10[2])Processes that are both (10[1])reversible and have (10[1])this property are isentropic. For (10[1])10 points, (10[1])identify (10[1])this adjective that describes processes (10[1])with (10[1])no (10[2]0[2])heat transfer. ■END■ (10[1])