Five kilograms of carbon monoxide (CO) is contained in a rigid tank with a volume of 2 m . The tank is fitted with a paddle wheel that transfers energy to the CO at a constant rate of 12 W for 1 hour. During the process, the specific internal energy of the carbon monoxide increases by 20 kJ/kg. If no overall changes in kinetic and potential energy occur. Determine: a. The specific volume at the final state (in m^3/kg).
b. The energy transfer by work (in kJ).
c. The energy transfer by heat (in kJ) and the direction of heat transfer.

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.

Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options

Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false