Arigid, sealed container of r134a initially at -30°c and 40% quality is placed inside a room so that it heats up at 5°c/hr. if there is 3 kg of r134a in the container, determine: a) the volume of the container b) the specific volume of the vapour when the r134a finishes converting into a gas c) the pressure when all the r134a has finished converting into a gas d) the energy required to turn all the r134a into a gas e) how long it will take for all the r134a to become a gas

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k