The flue gas from a furnace goes out with the following composition (dry basis): 12% CO2, 3% O2, 2% CO and 83% N2. The partial pressure of water is 10 mm Hg. The total pressure is 4 cm H2O draft. The barometric pressure· is 759 mm Hg. Calculate the composition on a wet basis (including water).

You work in a chemical plant which recovers gold from gold-plated electrical connectors using heated (Tacid = 55oC) nitric acid.  Once the acid is “used up” it gets piped through the plant to a separate facility for disposal.  During that time, it passes through a cooling chamber to strip the waste heat off the acid for recovery.  The acid passes through the chamber in 6m long, 400mm OD, 360mm ID aluminum tubes. The chamber passes room-temperature air over the tubes at 8 m/s.  Approximately 0.45 cubic meters of acid is processed per hour. a) What is the Reynold’s number of the nitric acid passing through the tube?  Is it turbulent or laminar? b) What is the heat transfer coefficient of the nitric acid to the inside of the aluminum tube? c) What is the heat transfer coefficient of the air over the tube? d) What is the overall heat rate from the nitric acid to the air? e) Based on your answers here, in a gas-liquid heat exchanger, which side of the exchanger are the fins usually on?…

Q3: Tests were making on drying a food product carried out in an insulated tray. The temperature of drying air was 60°C. The dry weight of material was 3.765 kg and the surface area 0.186 m2. The test data are given in table below. Time(h) | Weight(kg) 4.944 4.885 4.808 4.699 4.554 4.404 4.241 | 4.15 14 22 3 | 4.2 0.4 0.8 5 7 12 25 4.019 3.955 | 3.955 a) Determine the equilibrium moisture content. b) Calculate the constant and falling rate constant.

An open graduated cylinder at 25 °C is filled with mercury and water. The height of mercury is 7.0 cm and the water is 5.6 cm. Calculate the pressure at the bottom of the test tube (kPa) if the atmospheric pressure is 755 mm Hg. (Specific gravity of mercury and water are 13.6 and 1.0 respectively). Report answer in kPa

Calculate the pressure(in atm) of the saturated liquid at 71 °C.

A bomb calorimeter, or constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods.