read the following reactions. reaction 1: nacl(s) → na+(aq) + cl− reaction 2: n2 + 3h2 → 2nh3 which reaction leads to an increase in entropy? only reaction 1 only reaction 2 both reaction 1 and 2 neither reaction 1 nor 2

The correct answer is: Only Reaction 1.

Explanation:

Ok, let us define what entropy is: entropy is a measure of the random activity in a system, and there are several factors which can affect the amount of entropy in a system - for example when you increase temperature, you increase entropy.

In this case,

Reaction 1: NaCl(s)  → Na+(aq)+Cl- (aq): In this reaction you are solvating the atoms of Na+ and Cl-, or in other words, you are passing a compound from the solid state to the liquid state, which causes the entropy to increase. Liquids have more energy and entropy than solids.

Reaction 2: N2(g) + 3H2(g)  → 2NH3(g): In this case you are getting a gaseous product from gaseous reactants, and although there is positive entropy, it does not increase.

a) the particles of the chair are strongly held together.

elements make up everything, and they combine to make compounds.

the answer is c