Science Homework Help

According to the second law of thermodynamics:

A.the universe proceeds towards a state of lower entropy.

B.entropy is neither created nor destroyed.

C.the universe cannot create entropy.

D.the universe proceeds towards a state of higher entropy.E.the entropy of the universe is constant.1

2.Which one of the following processes leads to an increase in entropy?

decreasing the temperature of a gas

freezing a liquid

evaporating a liquid

a salt precipitating from a solution of its ions

chemical reactions that decrease the number of gas particl

4.For which of the following reactions is 

S° > 0.

Choose all that apply.

NH4Cl(s)  NH3(g) + HCl(g)

2H2O(g) + 2Cl2(g)  4HCl(g) + O2(g)

2NO(g) + O2(g)  2NO2(g)

2NO(g) + 2H2(g)  N2(g) + 2H2O(l)

2NH3(g) + 3N2O(g)  4N2(g) + 3H2O(g)