Question

4. A sample of 0.842 g of helium (He) gas is added to sample of 2.89 g of carbon dioxide (CO2) gas inside a balloon, at constant temperature and pressure. The starting volume of the CO2 gas alone was 1.64 L. Find the new volume in L of the gas mixture. Explain this new volume value, using ideas of the kinetic molecular theory. [12 pts.

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Answer 1

The formula for Avogadros law is mi= 2 V = 1.64 lit = 0.065 n2= 0.065 t V2 = 3 0.842 57 4 = 0.065 +0.2105 -0. 2755 V2 = x 2 => 1.54 x 0.2755 0.065 V2 =) 6.9510 final volume = 6.95106 New volume = vf-vi = (6.9510-1064) L I New 5.3110 Lt) at constant pressure and temp, molecular collisions are Constant, under such conditions, Increasing the number of gaseous molecules will require a proportional Increase in the container volume,