Across
- 5. It is the temperature and pressure at which the solid, liquid, and vapor phases of a pure substance can coexist in equilibrium.
- 7. It is defined as the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system.
- 9. It is the attractive force exerted upon the surface molecules of a liquid by the molecules beneath that tends to draw the surface molecules into the bulk of the liquid and makes the liquid assume the shape having the least surface area.
- 10. They are solids formed when molecules are weakly bound (can der Waals force) together in a lattice pattern or array that repeats throughout the crystal.
- 11. It is the action or property of like molecules sticking together, being mutually attractive.
- 13. They are the attractive forces between molecules. They are responsible for the nonideal behavior of gases.
- 15. It is the pressure exerted by a fluid at equilibrium at a given point within the fluid, due to the force of gravity.
- 17. It is a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
- 20. It is the weakest intermolecular force. It is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles.
Down
- 1. It is the temperature at and above which vapor of the substance cannot be liquefied, no matter how much pressure is applied.
- 2. It is the temperature at which the vapor pressure of a liquid equals the external pressure surrounding the liquid.
- 3. It is the pressure required to liquefy a gas at its critical temperature.
- 4. It is a type of solid that lacks definition in shape, pattern and long-range order.
- 6. When the system is heated, energy is transferred into it. In response to the energy it receives, the system changes, for example by increasing its temperature. A plot of the temperature versus time is called the _____________.
- 8. It is the pressure required to liquefy a gas at its critical temperature.
- 12. They are the forces that hold together the atoms making up a molecule or compound. They contain all types of chemical bonds.
- 14. (Type of Solid) It is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.
- 16. It is the ability to form instantaneous dipoles. It is a property of matter. It determines the dynamical response of a bound system to external fields, and provides insight into a molecule's internal structure.
- 18. It is the measurement of the flow properties of a material expressed as its resistance to flow.
- 19. It is the tendency of dissimilar particles or surfaces to cling to one another.