P4B.9 The vapour pressure, p, of nitric acid varies with temperature as follows: 0/°C 0 20...
2. The vapor pressure, p, of nitric acid varies with temperature as follows: t/°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 Plot and manipulate these data points in excel and answer the following questions. (a) (3 points) What is the boiling point at 100 kPa? How do you get it? (b) (6 points) What is the enthalpy of vaporization of nitric acid? How do you get it?
Question 2 The vapour pressure, p, of nitric acid varies with temperature as follows: Temperature / °C Vapour pressure / Torr 0 14.4 20 47.9 40 133 50 208 70 467 80 90 670 937 1282 100 Determine the following graphically: (a) the enthalpy of vaporization of nitric acid (b) the normal boiling point of nitric acid
11.115 The following figure is a plot of vapour pressure versus temperature for dichlorodifluoromethane (CC1,F2). The enthalpy change of vaporization of the liquid is 165 kJ g'. and the specific heat capacity of the liquid is about 10 JK- Vapour pressure (kPa) воб 700 600 500 400 300 200 100 30 -40 -30 -20 -10 0 10 20 Temperature (°C) (a) What is the normal boiling point of CC1,F22 (b) A steel cylinder containing 25 kg of CC1,F2 in the...
usius-Clapeyron equation tells us the variation of vapor pressure (p) with temperature (T) as ap dT RTr The vapour pressure of acetone, CH.0, is 30.6 kPa at 298 K. The norma boiling of acetone is at 329 K. Calculate the average enthalpy of vaporiz on of acetone over this temperature range (a) 34.8 kJ mol (b) 28.5 kJ mol c) 213 1 mol 31.6 moll
DVANCED MATERIAL Relating vapor pressure to vaporization 100 trichloroethylene -tetrahydrofuran - ethanol 0 60 80 temperature, °C Use the graph to answer the following questions: Which liquid is the most volatile? Which is the least volatile? most volatile: choose one V least volatile: choose one What is the normal boiling point of each liquid? Note: your answer must be within 1°C of the exact answer to be graded correct. trichloroethylene: 1°C tetrahydrofuran: ethanol: 0°C O more Suppose a beaker of...
H1- COOLING TOWER [10 p] 1. What is the wet bulb temperature? How can you measure it? Is the wet-bulb temperature greater than dry-bulb temperature? Why? [10 p] 2. A cooling tower is to be designed to cool 8 kg/s of water from 37°C to 29 °C. Entering air is 25 °C and at 30 % relative humidity. Leaving air is 22 °C and at 90% relative humidity. a) Calculate the air flow rate, G. b) Determine the possible lowest...