The extent of reactions 1 and 2 are 0.5 mol/s and 0.2 mol/s. Acetylene is fed to the reactor at a rate of 1 mol/s at a temperature of 25 ˚C. Hydrogen is fed to the reactor at a rate of 3 mol/s at a temperature of 60 ˚C. The exit of the reactor is 300 ˚C and the pressure is held constant for all streams at 1 atm. What is the rate of heat input/output to accomplish this process?

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan

Select any two (2) areas of applications of chain-drive. (clo4) a)-permanent lubrication necessary b)-hydraulic forklift truck operation c)-rigging and heavy moving materials d)-relatively high maintenance costs e)-costlier than belt drives