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A gas mixture at 470.0°C and 105 kPa absolute enters a heat exchanger at a rate of 71.0 m3/hr. The gas leaves the heat exchanger at 235.0°C. The change in enthalpy of the gas during the cooling process is -6.20 kJ/mol. What is the heat required in kW? Assume the gas behaves ideally and that the changes in kinetic and potential energy are negligible.
An unknown metal m reacts with sulfur to form a compound with the formula M2S3. If 3.12g of m reacts with 2.88g of S, what are the names of M AND M2S3
Rank the following substances in order from most soluble in water to least soluble in water: propane, C3H8; methanol, CH3OH; lithium nitrate, LiNO3; and butane, C4H10. Rank from most to least soluble in water. To rank items as equivalent, overlap ..
When a 30 mL sample of KOH solution is titrated with a standard solution of 0.411 M benzoic acid, it takes 25.5 mL to reach the equivalence point of the titration. What was the original concentration of the base?
The oxide of 'N' element contains 33.33% of the element .The same element forms a chloride whose Vapour density is 59.25.
Each cube measure 2.0 cm on each side.After you carefully lower each cube into the water of its own cylinder, what will the water level be in each cylinder?
one cup is equivalent to 237 cm3. if 1 cup of olive oil has a mass of 216g what is the density of olive oil in
the contents of one 40-lb bag of topsoil can cover 10.0 square feet of ground to a depth of 1.0 in. how many bags are
The following isotopic cluster was observed in a mass-spectrum of a parent peak of a halogenated compound:
Compare the chemical structure of the nylon polymer that has been prepared to the polypeptide trimer of glycine, the simplest of the naturally occurring amino acids
Identify the reaction conditions required for the dehydration of 2,3-dimethylpentan-2-ol to occur. Select all that apply. Select all that apply. Heat Base catalyst Excess Acetone Platinum catalyst Acid catalyst
Exposure to high doses of microwaves can cause damage. Estimate how many photons, with a wavelength= 12cm, must be absorbed to raise the temp of your eye by 3.0 degrees Celsius. Assume the mass of an eye is 11g and its specific heat capacity is 4...
What organic product(s) is formed when 1-methylcyclopentanol is heated in the presence of an acid catalyst?
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