Crossword

2. The symbol w represents the ________ performed by the system or on the system.
4. ________ is the study of the energy changes that accompany all processes, whether chemical or physical.
5. Substances that change the rate of a reaction without causing permanent changes.
7. A substance's constant volume heat capacity is sometimes referred to as its ______ heat capacity.
11. Complex molecules made up of long chains of amino acids which are compounds of carbon, hydrogen, oxygen, and nitrogen.
12. The change in enthalpy of the reaction is the heat of reaction at constant ________.
17. ________ is the enthalpy shift that takes place when one mole of a compound is created from its standard state constituents.
18. It is the total heat absorbed in a process at constant pressure if only pressure-volume work is done.
19. A polysaccharide that does not provide the body with energy or nutrients.
20. The setup used to determine energy change during a reaction.

1. Increase in ________ increases reaction rates.
3. The study of energy changes that accompany chemical transformations in matter.
6. A ________ equation is a statement of the chemical change and the energy change that accompanies the change.
8. An ________ reaction is characterized by a negative ∆U.
9. Energy required to raise the temperature of one gram of a substance by one degree Celsius is known as its heat capacity.
10. Hormone that moves glucose from the blood stream into the cells.
13. Measure of thermal energy in a system per unit temperature that cannot be used to perform beneficial work.
14. ________ rate is dependent on several factors, namely, nature of reactants, temperature, and concentration.
15. Time required to decrease the reactant concentration to one-half of the initial value.
16. Chemical and physical changes that occur with the absorption of energy are ________ processes.