Built Different
Draw diagrams for the 3 states of matter
solid, liquid, gas
The substance between these two that has stronger intermolecular forces HF or HCl
What is HF (hydrogen bonding)
The temperature and pressure of STP.
What is 1atm and 0 Celsius or 273.15K?
The phase change that occurs when a liquid becomes a gas.
What is Vaporization?
11.7 g NaCl dissolved to make 500.0 mL of solution produces a molarity closest to this value.
What is 0.40 M?
A solid melts, this happens to particle spacing and intermolecular attractions.
What is Particles become more separated and attractions become weaker?
The strongest IMF present in H₂S.
What is dipole-dipole
A student uses 25°C in a gas law calculation instead of converting to Kelvin. This mistake will make the calculation ________.
What is incorrect?
Grinding a solid into a powder increases this.
What is surface area?
A student adds water to a solution. This quantity remains unchanged.
What are moles of solute?
Explain why gases are much more compressible than liquids.
Gas particles are far apart with large amounts of empty space between them.
The movement of particles from an area of high concentration to an area of low concentration.
What is diffusion?
A gas occupies 4.0 L at 1.0 atm. If the pressure is doubled and temperature remains constant, this happens to volume.
What is gets cut in half (2L)?
The temperature and pressure at which solid, liquid, and gas coexist in equilibrium.
What is the triple point?
50.0 mL of a 6.0 M solution is diluted to 300.0 mL. The new concentration is this.
What is 1.0 M?
This state of matter has a definite volume but no definite shape.
What is liquid
A balloon develops a tiny hole and slowly deflates over several hours. This is an example of
What is Effusion?
A gas occupies 2.0 L at 300 K. If heated to 600 K at constant pressure it occupies this volume.
What is 4L?
Increasing temperature increases reaction rate because particles have more of this.
What is kinetic energy?
A student prepares a solution and accidentally uses twice the required amount of solvent. The molarity will be approximately this compared to the intended value.
What is half?
Rank the states of matter in increasing order of kinetic energy
Gas > Liquid > Solid
Two gases are released at the same time:
Which gas will diffuse faster?
Helium
A rigid tank contains a gas. The tank is heated from 250 K to 500 K. Assuming ideal behavior, pressure does this.
What is doubles?
A reaction mixture contains millions of collisions every second, yet the reaction proceeds slowly. Explain why.
What is most collisions are ineffective because they lack sufficient energy or proper orientation?
A student dilutes a solution from 1.0 M to 0.25 M. The final volume is this many times larger than the initial volume.
What is four times?