Look up the temperaturevapor pressure data for ammonia NH3 o

Look up the temperature-vapor pressure data for ammonia (NH3) over the temperature range 283 K to 311K in 2K increments. Use this as experimental data. a.) Curve fit the data using the Clausius Clapeyron Equation, polynomial fit, exponential power and log curve fits. b.) Expand the curve fit data from part a. to 388K. c.) Discuss briefly how each method performs as you expand the curve fitting beyond the data range. (Look up ammonia data to 388 K to evaluate)

Solution

Ans-

Experimental data for finding out the vapor pressure of ammonia over the temperature range 283 K to 311 K in 2K increments :- Vapor pressure of ammonia at 283 K = 5.9409 bar Vapor pressure of ammonia at 285 K = 6.3657 bar Vapor pressure of ammonia at 287 K = 6.8135 bar Vapor pressure of ammonia at 289 K = 7.2852 bar Vapor pressure of ammonia at 291 K = 7.7817 bar Vapor pressure of ammonia at 293 K = 8.3038 bar Vapor pressure of ammonia at 295 K = 8.8524 bar Vapor pressure of ammonia at 297 K = 9.4283 bar Vapor pressure of ammonia at 299 K = 10.032 bar Vapor pressure of ammonia at 301 K = 10.666 bar Vapor pressure of ammonia at 303 K = 11.329 bar Vapor pressure of ammonia at 305 K = 12