Question

Q1 and Q3

Pelane } • [v-nb]= nRT L7: Discussion Worksheet volume attraction NAME methylamine FORMULA CH3NH2 C₂H6 (L2 bar mol) 7.106 5.562 14.66 (L molt) 0.05879 0.0638 0.1226 BOILING POINT -5 °C -89 °C -1 °C ethane RT au-1 butane C&H10 1. Imagine you would like to store gas in a steel tank at 350 atm and 5 °C. Based on the table above, which gas would you be able to store more moles of in the tank; methylamine or ethane? Explain how the data from the table supports your answer. V=nR²T3 (PR²T tapetub 2. Under which conditions is butane LEAST like to satisfy the ideal gas law? a. 20 atm and 5 °C b. 10 atm and 1000 °C c. 2 atm and 500 °C d. 0.05 atm and 100 °C vapor pressure at: 10 °C methanol CH3OH 0.053 atm ethanol CH3CH2OH 0.033 atm 20 °C 0.13 atm 0.066 atm 40 °C 0.36 atm 0.18 atm 60°C 0.84 atm 0.47 atm 3. Based on the data table above, which substance do you predict will have the largest value for the van der Waals "a" parameter: methanol or ethanol? Explain how the data from the table supports your answer.

Answer 1

2 V X W V U U 40974L sol": vanden waals gay equation for real gases (P+ nam) (V-nb) = nRT P= Pressume from this equation volume v- volume of the gas can be calculaled n= no. of moles r= MR3T3 T = Temperature . (PR2q2 + ap2) the R= ideal gas a constant - Vimedhye amin - 160.082) (278)3 = 135010.022731278)2 + 7.10648 503] + 00 5879 0.006724 X 21484952 181,880-1656 +870, 485 +0.05873 11,845.9431 1052365.22435 0.0 1125 Vethane = 1x (0.082) 3x (278)3 350x (0.082)3(279)5.562*(350)2 +0.0638 - 1,845.5431 181,880-1652 + 621,345+0.0638 ||१५5.5431 = 0.01372_L - 863,225.2254 since the volume of one mole of ethane is more volume than methyl amine. This at 350 alm pressure and 5°c methyl amine memains mone no. of moles. 2. Real gas behaves as klost ideal at low presgune and very high temperature As in the given aquestion option (as has opposite, do idea gas condition so it will least like to satisfy ideal gay law. - éthane

3. At low temperature and high temperature 1. Pressure you behaves as ideal ie the gas molecules hay zeno size and zeno intermolecular fonees. at different temperature as the vapour Pressure of methanoe is high compare to ethanoe, so at same temperature Tonee of attraction between the methanoe morecule is very high low compane to ethanol Thuy ethanol has high a' valve compane to methanoe.