Q1) The vapour pressure, p, of nitric acid varies with temperature as follows: 0/C 0 20...

 

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Q1) The vapour pressure, p, of nitric acid varies with temperature as follows: 0/°C 0 20 40 50 70 80 90 100 p/kPa 1.92 6.38 17.7 27.7 62.3 89.3 124.9 170.9 What are: (a) the normal boiling point (b) the enthalpy of vaporization of nitric acid? Q2) Calculate the melting point of ice under a pressure of 50 bar. Assume that the density of ice under these conditions is approximately 0.92 g cm' and that of liquid water is 1.00 g cm. Q3) An open vessel containing (a) water, (b) benzene, (c) mercury stands in a laboratory measuring 5.0 m × 5.0 mx 3.0 m at 25°C. What mass of each substance will be found in the air if there is no ventilation? (The vapour pressures are (a) 3.2 kPa, (b) 13.1 kPa, (c) 0.23 Pa.) Q1) The vapour pressure, p, of nitric acid varies with temperature as follows: 0/°C 0 20 40 50 70 80 90 100 p/kPa 1.92 6.38 17.7 27.7 62.3 89.3 124.9 170.9 What are: (a) the normal boiling point (b) the enthalpy of vaporization of nitric acid? Q2) Calculate the melting point of ice under a pressure of 50 bar. Assume that the density of ice under these conditions is approximately 0.92 g cm' and that of liquid water is 1.00 g cm. Q3) An open vessel containing (a) water, (b) benzene, (c) mercury stands in a laboratory measuring 5.0 m × 5.0 mx 3.0 m at 25°C. What mass of each substance will be found in the air if there is no ventilation? (The vapour pressures are (a) 3.2 kPa, (b) 13.1 kPa, (c) 0.23 Pa.)

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1a We have HNO3 and we have to determine its boiling point and enthalpy of vaporization We know that d ln p dt vap H RT2 d ln p vap H RT2 dT d ln p va... View the full answer