8. Equal numbers of moles of CO2(g),N2(g), and NH3(g) are placed in a seales temperature. If the vessel has a pinhole-size leak, which of the following some of the gas mixture has effused? 1. The mole fraction of CO2 in the sample will increase. II. The N2 will effuse the fastest since it is the lightest. III. All gases will effuse at the same rate since the temperature is held a. 1,11 and 111 b. only 111 d. 11 and 111