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.)
True False  The energy of the universe is constant; the entropy of the universe increases.
True False  All systems become more disordered spontaneously.
True False  If a reaction is spontaneous, the reverse reaction is non-spontaneous.
True False  The boiling of water at 105°C and 1 atm is a spontaneous process.
True False  If a process increases the randomness of the particles of a system, the entropy of the system increases.
True False  Both ΔS_sys and ΔS_surr must equal zero at equilibrium.

Answer 1

True:

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

If a reaction is spontaneous, the reverse reaction is non-spontaneous. Because in spontaneous process energy is released so in the reverse reaction Energy will be utilized.

The boiling of water at 105°C and 1 atm is a spontaneous process.

If a process increases the randomness of the particles of a system, the entropy of the system increases. Because Entropy itself defines it is a measure of Randomness.

False:

Both ΔS_sys and ΔS_surr must equal zero at equilibrium. since at equilibrium ΔS_sys = ΔS_surr

All systems become more disordered spontaneously. If enegy of the system changes then entropy changes but not spontaneously