3 (a) A medical grade diatomic gas Zx (1000 grams) behaves non-ideally and must be kept at a temperature of 22 °C. Given

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3 A A Medical Grade Diatomic Gas Zx 1000 Grams Behaves Non Ideally And Must Be Kept At A Temperature Of 22 C Given 1 (32.89 KiB) Viewed 30 times

3 (a) A medical grade diatomic gas Zx (1000 grams) behaves non-ideally and must be kept at a temperature of 22 °C. Given that only 75000 cm' storage tanks are available, determine the maximum pressure allowed for storage. Assuming the gas behaved ideally, how would your answer differ? van der Waals constant for 'Z' - a 1.25 L'atm mola; b: 0,0318 L moll Atomic mass of Z - 17 g/mol (10 marks) (b) Surface sanitizers were prepared using ethyl alcohol/water and isopropyl alcohol/water solutions An experiment was done to determine which composition would be most effective and as such two solutions were formulated: 70% v/v ethyl alcohol and 70 % v/v isopropyl alcohol. Calculate the vapour pressure of these solutions and use your answer to reason which combination would stay on the surface longer. (10 marks) Pº (Ethyl alcohol) = 12.4 kPa P (Isopropyl alcohol) - 4,4 kPa Pº(Water) = 2.4 kPa