CH. 14 Clicker Review

Kinetic Molecular Theory States that gas particles are A. large B. small C. slow D. separated by small distances

Kinetic Molecular Theory States that gas particles A. travel in straight lines B. travel in curved paths after collisions C. have low energy D. have significant intermolecular forces

Kinetic Molecular Theory States that gas particles A. undergo inelastic collisions B. avoid collisions C. collide infrequently D. undergo elastic collisions

Gas laws state that as temperature increases with a constant volume A. Pressure decreases B. Pressure varies C. Pressure does not change D. Pressure increases

Gas laws state that at a constant volume Kelvin temperature is _____________ proportional to pressure A. inversely B. conversely C. directly D. always

Gas laws state that at a constant pressure Kelvin temperature is _____________ proportional to volume A. inversely B. conversely C. directly D. always

Gas laws state that at a constant temperature pressure is _____________ proportional to volume A. inversely B. conversely C. directly D. always

If equal number of moles of three different gases are placed in separate sealed identical flasks at the same temperature, which flask will have the highest pressure? A. the gas with the higher molar mass B. the gas with the lower molar mass C. the gas that was placed in the flask first D. neither, the pressure will be the same in each

When volume is increased, why does pressure decrease? A. the temperature increases B. the pressure does not change C. there are more collisions D. there are less collisions

When a weather balloon increases in altitude, what will happen to the balloon if the atmospheric pressure is constant? A. It will get larger B. it will get smaller C. it will stay the same D. it will explode

Why does a balloon on the top of a flask start to inflate when the flask is placed on a hot plate? A. gases expand when heated B. some gases only react at high temperatures C. the pressure of the gas increases when volume decreases D. solids require heat in order to change into gases

As the number of moles of a gas increase, the _____ increases in a sealed container. A. volume B. temperature C. boiling point D. pressure

If pressure and temperature are both allowed to change, then decreasing volume _________________. A. increases pressure and temperature B. decreases pressure and increases temperature C. increases pressure and decreases temperature D. decreases pressure and decreases temperature *remember gas law apparatus!

Memorize and Know How to Calculate with… Boyles Law P1V1 = P2V2 Charles’s Law V1/T1 = V2/T2 Gay-Lussac’s Law P1/T1 = P2/T2 Combined Gas Law P1V1 = P2V2 T1 T2 Ideal Gas Law PV=nRT, R will be given…make sure you match units! Partial Pressures (with pressure, moles and percent) PT = P1+ P1+ P3 Mole fraction X total pressure = partial pressure of gas Percent converted to a decimal X total pressure = partial pressure of gas