Crossword

1. Substances that change the speed of a reaction without causing permanent changes.
3. The study of energy changes that accompany chemical transformations in matter.
6. ________ is the study of the energy changes that accompany all processes, whether chemical or physical.
10. A polysaccharide that does not provide the body with energy or nutrients.
11. A ________ equation is a statement of the chemical change and the energy change that accompanies the change.
12. Complex molecules made up of long chains of amino acids which are compounds of carbon, hydrogen, oxygen, and nitrogen.
14. Chemical and physical changes that occur with the absorption of energy are ________ processes.
15. ________ is the enthalpy shift that takes place when one mole of a compound is created from its standard state constituents.
16. An ________ reaction is characterized by a negative ∆U.
18. Measure of thermal energy in a system per unit temperature that cannot be used to perform beneficial work.

1. The setup used to determine energy change during a reaction.
2. ________ rate is dependent on several factors, namely, nature of reactants, temperature, and concentration.
4. It is the total heat absorbed in a process at constant pressure if only pressure-volume work is done.
5. The symbol w represents the ________ performed by the system or on the system.
7. Time required to decrease the reactant concentration to one-half of the initial value.
8. Increase in ________ increases reaction rates.
9. Hormone that moves glucose from the blood stream into the cells.
10. The ________ theory explains the effects of temperature and concentration on reaction rate.
13. Energy required to raise the temperature of one gram of a substance by one degree Celsius is known as its heat capacity.
17. A substance's constant volume heat capacity is sometimes referred to as its ______ heat capacity.