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2 kg of water exist initially as a vapor and liquid at 90 degrees C in a rigid container of volume 2.42 m^3
(a) at what pressure is the system?
(b) what is the quality of the system
(c) the temperature of the container is raised to 100 degrees C. what is the quality of the system and what is the pressure? what are the dH and dU at this point relative to the initial state?
(d) as the temperature is increased, at what temperature and pressure does the container contain only saturated vapor? what is the dH and dU at this point to the initial state?
(e) make a qualitative sketch of parts (a) through (d) on a P-V diagram, showing the phase envelope.
In which pair of substances below does the substance with the greater entropy not follow the substance with the lesser entropy
sodium metal reacts violently with water to form naoh and release hydrogen gas. suppose that 10.0g of na react
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A 4.0L sample of air collected at 298 K and then cooled to 278F while held at constant pressure. What is the new volume of the air
The tire is filled with dry air at sea level and a temperature of 60 degree F to 32 lb/square inch.standard sea level pressure is 101325 Pa at 0 degree C (STP).
Na3PO4+CaCl2 ---> Ca3(PO4)2+NaCl if 0.996 g of Na3PO4 are provided, how many grams of Ca3(PO4)2 should be formed?
You are titrating 150.0 mL of 0.070 M Ca2 with 0.070 M EDTA at pH 9.00. Log Kf for the Ca2 -EDTA complex is 10.65, and the fraction of free EDTA in the Y4- form, ?Y4-, is 0.041 at pH 9.00. Calculate the concentration of Ca2 at V = 1/2 Ve. Calculate..
Estimate the enthalpy change for the combustion of one mole of ethanol (C2H5OH) using average bond dissociation enthalpies (in KJ/mol) for C-?H: 413, O-?H: 463, C-?O: 358, C-?C: 154, C=O: 122, and O=O: 498.
the laboratory is dissolved in 95% ethanol, diluted with water, and titrated to a phenolphthalein endpoint with 17.3 mL of 0.114 M NaOH. What is the percent purity of aspirin in the sample?
how many liters of ethylene glycol ch2ohch2oh should be added to a car radiator that contains a total of 6.5 l of
Compute the work of expansion(in Joules) accompanying the complete combustion of 1.0 grams of sucrose C 12 H 22 O 11 to CO 2 and (a) liquid water, (b) water vapour at 20 degrees Celsius when the external pressure = 1.0 atm
What mass of cesium bromide must be added to .500 L of water (d=1.00g/mL) to produce a 0.144 m solution? What are the mole fraction and the mass percent of CsBr
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