True or False: 1. An example of a spontaneous process is a gas introduced into a

Question

True or False:

1. An example of a spontaneous process is a gas introduced into a volume that diffuses and forms a homogeneous mixture with any other gases present.

2. If the change in enthalpy of a process is negative, and the change in entropy is positive, then the process is always spontaneous.

3. When the change in enthalpy is positive, the reaction is exothermic.

4. When the sign of q is negative then the system has released heat, and enthalpy is negative.

5. The change in heat can predict the change in entropy.

6. If a room gets cleaned and put back in order then the change in entropy for the room is negative.

7. If the change in Gibb’s free energy is negative then the process is spontaneous.

8. In a REDOX reaction the oxidizing agent is the species that is being reduced.

9. In the following reaction Cu(s) + 2 Ag+(aq) Cu2+(aq) + 2 Ag(s) solid copper is being oxidized.

10. Reduction takes place at the cathode.

Explanation / Answer

1. An example of a spontaneous process is a gas introduced into a volume that diffuses and forms a homogeneous mixture with any other gases present. (True)

2. If the change in enthalpy of a process is negative, and the change in entropy is positive, then the process is always spontaneous.(True)

3. When the change in enthalpy is positive, the reaction is exothermic.( False )

4. When the sign of q is negative then the system has released heat, and enthalpy is negative. (True)

5. The change in heat can predict the change in entropy. ( False )

6. If a room gets cleaned and put back in order then the change in entropy for the room is negative.(True)

7. If the change in Gibb’s free energy is negative then the process is spontaneous.(True)

8. In a REDOX reaction the oxidizing agent is the species that is being reduced.(True)

9. In the following reaction Cu(s) + 2 Ag+(aq) Cu2+(aq) + 2 Ag(s) solid copper is being oxidized.(True)

10. Reduction takes place at the cathode.(True)

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