Chemistry

2. Products are the species formed from chemical reactions.
5. energy that comes from a source and travels through space at the speed of light.
7. energy which a body possesses by virtue of being in motion.
11. the amount of heat needed to turn 1 g of a liquid into a vapor, without a rise in the temperature of the liquid.
13. the branch of chemistry concerned with the quantities of heat evolved or absorbed during chemical reactions
15. the SI unit of work or energy, equal to the work done by a force of one newton when its point of application moves one meter in the direction of action of the force
18. a substance that takes part in and undergoes change during a reaction.
19. the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases 1 K (or 1 °C)

1. the amount of heat needed to turn 1 g of a liquid into a vapor, without a rise in the temperature of the liquid.
3. the process by which heat energy is transmitted through collisions between neighboring atoms or molecules.
4. The amount of energy in an item of food or drink is measured in calories.
6. the SI base unit of thermodynamic temperature (equivalent in size to the degree Celsius), first introduced as the unit used in the Kelvin scale.
8. process releases heat, causing the temperature of the immediate surroundings to rise.
9. process absorbs heat and cools the surroundings.
10. the energy contained within a system that is responsible for its temperature.
12. scale based on 0° for the freezing point of water and 100° for the boiling point of water.
14. used to measure amounts of heat transferred to or from a substance.
16. the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases.
17. the quantity of heat necessary to change 1 g of a solid to a liquid with no temperature change