An Example of a Spontaneous Process Having $\Delta$ H ~ 0 Is
A) 1 L He(1 Atm, 298

Multiple Choice

An example of a spontaneous process having $\Delta$ H ~ 0 is

A) 1 L He(1 atm, 298 K) + 1 L Ar(1 atm, 298 K) $\rightarrow$ 2 L He/Ar mixture(1 atm, 298 K) .
B) evaporation of water at 100 ^$\omicron$ C and 1 atm.
C) a ball rolling from the top of a hill to the bottom of a valley.
D) precipitation of AgBr(s) from a solution of Ag⁺(aq) and Br^-(aq) .
E) freezing of water at - ^$\omicron$ C.