Across
- 3. The speed at which a chemical reaction occurs
- 6. the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
- 8. any chemical substance produced during the conversion of some reactant to a product
- 12. when energy is taken from the surroundings
- 15. the outside part or uppermost layer of something
- 16. a state of anxiety or nervous excitement.
Down
- 1. reaction in which the conversion of reactants to products and the conversion of products to reactants occur simultaneously
- 2. a reaction in which products are produced from reactants and it goes from left to right in a reversible reaction.
- 4. the branch of physical chemistry that is concerned with understanding how fast or how slow chemical reactions occur
- 5. the sum of the internal energy and the product of the pressure and volume of a thermodynamic system.
- 7. coordinate diagram a graph that plots energyversus reaction progress
- 9. a substance that delays, slows or prevents a chemical reaction
- 10. is a "reaction for which the overall standard enthalpy change ΔH⚬ is negative
- 11. quantitative measure of how hot or cold something is
- 13. any substance that increases the rate of a reaction without itself being consumed
- 14. eat absorbed or evolved (or the change in enthalpy) in any chemical reaction is a fixed quantity