Question

Identify the following statements as true or false. (Use the drop-down menu and select "True" or "False" for each. You must get all 6 correct.)

All spontaneous reactions occur quickly.

The energy of the universe is constant; the entropy of the universe increases.

If a process increases the randomness of the particles of a system, the entropy of the system increases.

All systems become more disordered spontaneously.

All spontaneous processes release heat.

Both ΔSsys and ΔSsurr must equal zero at equilibrium.

Answer 1

All spontaneous reactions occur quickly ..> false! never confuse kinetics with equilibrium! example...oxidation of metal!

The energy of the universe is constant; the entropy of the universe increases. --> True, at least for thermodynamic processes

If a process increases the randomness of the particles of a system, the entropy of the system increases. }True, if chaos is created, disorder increases, then Entropy increases

All systems become more disordered spontaneously --> False, this is only true for some processes, not all

All spontaneous processes release heat --> False, since some process require heat

Both ΔSsys and ΔSsurr must equal zero at equilibrium. --> False only that of the system