Chemical Engineering Answers

Air (ideal gas) with mass of 12kg expands polytropically ( n=1.11) in a closed system from 515 C to 10 C . Find the work and the heat exhanged with the surroundings.

how many mols of HCl are required to fully react with 150 g of C to ( A H )2​ ?

The inside of a baking oven is at a temperature of 177degrees celcius. The wall of an oven is made up of 4mm thick stainless steel of thermal conductivity 15.5W/mk. Determine the heat conduction heat loss per unit area from the oven if outside temperature is at 27degrees celcius above room temperature

A mixture of isomeric Diphenyl and Dichloro Tetrachloroethane is used as a
Thermic fluid in a liquid phase heating system. The thermic fluid enters an
indirect fired heater at a temperature of 450 K and leaves the heater at a temperature of 550 K. Calculate the supply of heat to the heater per kg of the liquid heated. The heat capacity of the fluid is given by the equation: CP = 1.435 + 2.19 × 10–3T, kJ/(kg  K)

Into a barrel containing 33.2 bbl (US) of water containing 0.0012 mol/L of a blue dye you pour V2 yd3 of water containing 8.91 M of the dye. The final concentration of the dye in the barrel is 7.91 mol/m3 after it's well-mixed. What is V2 is yd^3?

A balloon is slowly compressed at an atmospheric pressure of 649 torr and temperature of 169 °R. The temperature inside the balloon remains at the atmospheric temperature, while the volume changes from 0.0256 bbl (US) to V2 ft3, and gage pressure inside the balloon increases from 226 kgf/m2 to 0.672 lbf/in2.
Note: Use the ideal gas law — absolute pressure·volume=number of moles·ideal gas constant·absolute temperature. The ideal gas constant is 8.134 J·mol-1·K-1.