An open container was monitored and found to have a toluene evaporation rate of 0.1 g/min. The ventilation rate is 2.84 m3/min, the temperature is 27°C, and the pressure is 1 atm. Estimate the concentration of toluene vapor in the enclosure and compare it to the TLV of 50 ppm. Perform the calculation for a k of 1.0 and 0.1.

What precautions should you take to prevent injuries when dealing with heavy loads?

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.

A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.