1. Which statement is false? (a) The density of a gas is constant as long as its
ID: 699009 • Letter: 1
Question
1. Which statement is false? (a) The density of a gas is constant as long as its temperature remains constant. (b) Gases can be expanded without limit. (c) Gases diffuse into each other and mix almost immediately when put into the same container (d) The molecular weight of a gaseous compound is a non-variable quantity (e) Pressure must be exerted on a sample of a gas in order to confine it 2. Under conditions of fixed temperature and l. P1V1 = P2V2 ll. PV = constant Ill. P1/P2 = V2/V1 (d) 1, Il, and amount of gas, Boyle's law requires that (a) I only (b) Il only (c) Ill only 3. Which one of the following statements is not consistent with the kinetic-molecular theory of gases? (a) Individual gas molecules are relatively far apart. (b) The actual volume of the gas molecules themselves is very small compared to the volume occupied by the gas at ordinary temperatures and pressures. (c) The average kinetic energies of different gases are different at the same temperature (d) There is no net gain or loss of the total kinetic (translational) energy in collisions between gas molecules (e) The theory explains most of the observed behavior of gases at ordinary temperatures and pressures 4. A real gas most closely approaches the behavior of an ideal gas under conditions of (a) high P and low T (c) low P and T (d) high P and T (b) low P and high T (e) STPExplanation / Answer
1. Option A is correct
The density of a gas is constant as long as its temperature remains constant is completely false
2. Option D is correct
According to boyles law volume of gas is inversely proportional to the pressure at constant temperature. Therefore all relationship are correct
3. The correct option is C
The average kinetic energies of different gases are different at the same temperature is not consistent
4. A real gas most closely approaches the behavior of an ideal gas under low pressure and high temperature
Therefore option B is correct
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.