The hydrolys is of esters fequently is catalyzed by acids. RCOOR' + H2O → RCOOH + R'0H As the above hydrolysis reaction proceeds, more acid is produced and the concentration of catalyst increases. This phenomenon, known as "autocatalysis is captured by the rate equation: Here ko is the rate constant in the absence of the organic acid that is produced by the [RCOORo 1 M [H2010 1M reaction. The initial/inlet concentrations are listed below: The rate constants are koー0.01 (Mh)", k1 = 0.20 M-2h-1. The reaction takes place in the liquid phase. (a) Cakculate the values of -TRCOOR, at fractional conversions of ester of xRCOOR 0,0.1,0.2,0.3,0.4,0.5,0.6,0.7.

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false