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470 kg/h of steam drives a turbine. The steam enters the turbine at 44 atm and 450oC at a linear velocity of 55 m/s and leaves at a point 5 m below the turbine inlet at atmospheric pressure and a velocity of 375 m/s. The turbine delivers shaft work at a rate of 70 kW, and the heat loss from the turbine is estimated to be 104 kcal/h.
Gravitational acceleration = 9.81 kg/m2
Determine the potential energy (W) associates with this process.
The product of furan as well as maleic anhydride in diethyl ether reacts at room temperature moreover forms the exo products as the major product. This product decay at its melting point while most other Diels Alder adducts with maleic anhydride d..
calculate the quantities of reagents needed to prepare 1.0 l ofdisodium arginine-sodium arginine buffer solution at a
The mass spectrum of an organic compound shows the relative abundances of M to be 36.44% and M 1 to be 8.277%. Assuming the peaks are caused by 12C and 13C isotopes
A tablet containing 500.0 mg of aspirin (acetylsalicylic acid or HC9H7O4) was dissolved in enough water to make 100 mL of solution. Given that Ka = 3.0 × 10-4 for aspirin, what is the pH of the solution
The small bags of silica gel you often see in a new shoe box are placed there to control humidity. Despite its name, silica gel is a solid. It is a chemically inert, highly porous, amorphous form of SiO2
An empty Erlenmeyer flask weighs 252.3 g. When filled with water (d = 1.00 g/cm3), the flask and its contents weigh 503.3 g. What is the flask's volume
At 25°C and 765Torr carbon dioxide has a solubility of 0.0342 M in water. Explain what is its solubility at 25°C and 1470Torr
A gas sample has a volume of 541mL when at 65 degree C and 760 mm Hg, thus what is the volume in milliliters will it occupy at 25 degree C and 890 mm Hg,
The analytical balance is listed as having an uncertainty of +- 0.0005g. Is the range of weighings collected by you on the empty beaker within this uncertainty. If no, can you define this discrepancy
Methane (CH4) and the perchlorate ion (ClO4-) are both described as tetrahedral. What does this indicate about their bond angles? The NH3 molecule is trigonal pyramidal, while BF3 is trigonal planar.Which of these molecules is flat?
How many moles of iron atoms are in 2.28 mol of Fe2O3?
2 FeS + 3 N2 → 2 FeN + 2 SN2 This reaction has a 65.0% yield. How much N2 is consumed if 13.6 g of FeN are produced?
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