Decide which of the following statements are true and which are false. True In o

Question

Decide which of the following statements are true and which are false. True In order for two separate 1.0Lsamples of O2(g) and H20g) to have the same average velocity, the o20g) sample must be at a higher temperature than the H2(g) sample. True At constant temperature, the heavier the gas molecules, the larger the average kinetic energy. False Ideal gas molecules have small volumes and exert weak attractive forces on one another. True At constant temperature, the lighter the gas molecules, the smaller the average velocity True As temperature decreases, the average kinetic energy of a sample of gas molecules increases. True Real gas molecules behave most ideally at high temperature and low pressure. For an ideal gas, the kinetic molecular theory assumes that the average kinetic energy of a gas sample depends only on the Kelvin temperature (KE 3RT/2). In order for two different gas samples at some constant temperature to have the same average kinetic energies, then the gas sample with the lighter molecules must have a faster average velocity mv2/2) The two assumptions of the kinetic molecular theory that don't always hold true are 1. gas molecules are volumeless and 2. gas molecules exert no attractive forces on one another minimize the effects of these two factors, a real gas will behave most ideally when the volume of the gas container is large (low P) and when the average velocity of the gas molecul large (high T).

Explanation / Answer

Bunch A: Q1. T Q2. F Q3. T Q4. F, Q5. F. Q6. F

Bunch B: Q1. F Q2. T Q3. F Q4. T, Q5. T Q6. T

BUnch C. q= -ve, w= +ve

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