Crossword

5. The enthalpy change that occurs when one mole of a compound is produced from its standard state constituents is known as the ________.
8. Measure of thermal energy in a system per unit temperature that cannot be used to perform beneficial work.
12. An ________ reaction is characterized by a negative ∆U.
13. ________ is the study of the energy changes that accompany all processes, whether chemical or physical.
15. Chemical and physical changes that occur with the absorption of energy are ________ processes.
16. It is the total heat absorbed in a process at constant pressure if only pressure-volume work is done.
18. Hormone that moves glucose from the blood stream into the cells.
19. Energy required to raise the temperature of one gram of a substance by one degree Celsius is known as its heat capacity.
20. The setup used to determine energy change during a reaction.

1. ________ rate is dependent on several factors, namely, nature of reactants, temperature, and concentration. Reaction
2. Substances that change the rate of a reaction without causing permanent changes. catalyst
3. A substance's constant volume heat capacity is sometimes referred to as its ______ heat capacity.
4. Time required to decrease the reactant concentration to one-half of the initial value.
6. A ________ equation is a statement of the chemical change and the energy change that accompanies the change.
7. A polysaccharide that does not provide the body with energy or nutrients. Cellulose
9. Increase in ________ increases reaction rates.
10. Complex molecules made up of long chains of amino acids which are compounds of carbon, hydrogen, oxygen, and nitrogen.
11. The study of energy changes that accompany chemical transformations in matter.
14. The symbol w represents the ________ performed by the system or on the system.
17. The change in enthalpy of the reaction is the heat of reaction at constant ________.