True or False?

1. Most chemical processes involve energy changes.

2. “r” is the symbol used to represent the heat absorbed or released by a system undergoing a change.

3. Chris White has a Barbie collection.

4. A thermometer is the device used to measure energy changes.

5. “H” symbolizes entropy.

True or False?6. “H” is the property of a substance that allows us to determine the amount of energy that flows into or out of a system7. “H” can be measured absolutely but not relatively8. We measure the energy changes of processes in the lab in an open container keeping the pressure on the system constant.9. Mr. Kernion is the best A.P. Chemistry teacher you have ever had.10. H is related to the heat flow measured in the lab.

True or False?

1. Most chemical processes involve energy changes.

2. “r” is the symbol used to represent the heat absorbed or released by a system undergoing a change.

3. Chris White has a Barbie collection.

4. A thermometer is the device used to measure energy changes.

5. “H” symbolizes entropy.

True

False???

FalseFalse

True or False?6. “H” is the property of a substance that allows us to determine the amount of energy that flows into or out of a system7. “H” can be measured absolutely but not relatively8. We measure the energy changes of processes in the lab in an open container keeping the pressure on the system constant.9. Mr. Kernion is the best A.P. Chemistry teacher you have ever had.10. H is related to the heat flow measured in the lab.

TrueFalse

TrueTrue, by default

True

If 20.0 L of a gas at a constant pressure of 2.0 atm expands to 25.0 L what is the work done by the gas?

w = -10. L atm w = -1.0 x 103 J

w = -(2.0 atm)(5.0L)