A sample of gas occupies 75.0 ml at 725 mmHg and 18 °C. Calculate its volume at 800 mmHg and 25 °C. Initial: Final: Effect:

6. Air at 205 kPa and 37 °C flows upward through a 6-cm diameter inclined duct at a rate of 65 L/s. The duct diameter is then reduced to 4-cm through a reducer. The pressure change across the reducer is measured by a water manometer. The elevation difference between the two points on the pipe where the two arms of the manometer are attached is 0.20 m. Determine the differential height between the fluid levels of the two arms of the manometer. The properties of air at 37 °C is a molar mass of 29 g/mol, viscosity of -1.962*105 kg/m-s, and ep of 1.0063. Assumption: Liquids do

If I have gas at 1.0 atm of pressure and 30oC, what will I have to raise the temperature to in order to get 6.50 atm of pressure?

5. Solar ponds are small artificial lakes used to store solar energy. The rise of heated (and thus less dense) water to the surface is prevented by adding salt at the pond bottom. In a typical salt gradient solar pond, the density of water increases in the gradient zone, as shown. For H 4 m, po 1040 kg/m³, and a thickness of 0.8 m for the surface zone, calculate the gauge pressure at the bottom of the gradient zone. V S Sun = = H=4m = Surface zone Po 1040 kg/m³ Increasing salinity and density Gradient zone Storage zone - (2 Po=1040 kg/m P= Po(1+35+5²)

Calculate the melting point of ice under a pressure of 10 MPa in Kelvin. Assume that the density of ice under these conditions is approximately 0.915g/cm and that of liquid water is 0.998 g/cm?.

Design a hydrocooling unit that can cool fruits and vegetables from 30°C to 5°C at a rate of 20,000 kg/h under the following conditions: The unit will be of flood type that will cool the products as they are conveyed into the channel filled with water. The products will be dropped into the channel filled with water at one end and picked up at the other end. The channel can be as wide as 3m and as high as 90 cm. The water is to be circulated and cooled by the evaporator section of a refrigeration system. The refrigerant temperature inside the coils is to be –2°C, and the water temperature is not to drop below 1°C and not to exceed 6°C. Assuming reasonable values for the average product density, specific heat, and porosity (the fraction of air volume in a box), recommend reasonable values for the quantities related to the thermal aspects of the hydrocooler, including how long the fruits and vegetables need to remain in the channel, the length of the channel, the water velocity through…

the pressure drop across the tube bank, and (c) the rate of condensation of steam inside the tubes. Evaluate the air properties at an assumed mean temperature of 35°C and 1 atm. Is this a good assumption?solve this part too

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Fluid Mechanics Quiz 5 Q1: Air at 200 °F and 60 psia flows in a 4-in.-diameter pipe at a rate of 0.52 lb/s. Determine the pressure at the 2-in.-diameter throat of a Venturi meter placed in the pipe. Q2: Water flows through a 40-mm-diameter nozzle meter in a 75-mm-diameter pipe at a rate of 0.015 m/s. Determine the pressure difference across the nozzle if the temperature is (3) 10 °C. or (b) 80 °c. Q3: Water flows through the orifice meter shown in Fig. below at a rate of 0. 10 cfs. If d = 0.1 ft, determine the value of h. Q- 2 in.

2. A clarifier-thickener system as show below is used to separate solids and liquids. Assume the density of solid is the same as water. Given the known quantities in the table below. Please fill in all missing numbers the table. A' E Stream A B Flow rate (Q, L/s) Solid (C, mg/L) 100 2500 90 10 6000 с D E A' 160