Which of the following result(s) in an increase in the entropy of the system? I. II. Br2(g) → Br2(l) III. NaBr(s) → Na+(aq) + Br–(aq) IV. O2(298 K) → O2(373 K) V. NH3(1 atm, 298 K) → NH3(3 atm, 298 K)

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.

a electronegativity decreases beacuse the size of nucleus is bigger.