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The value of q is always equal to the value of w for a reversible reaction The energy change of the universe for any spontaneous process is always positive The equilibrium constant is always equal to one for any system at equilibrium The free energy change for any spontaneous process is always positive None of these statements are true The entropy change of the universe for any spontaneous process is always positive The equilibrium constant is always greater than one for an extensive reaction
it was found that at 344 seconds the concentration of dinitrogen pentoxide was 0.696 mol/L and at 708.1 seconds the concentration of dinitrogen pentoxide was 0.237 mol/L. What is the rate of decomposition over the specified time period in this rea..
MgNH4PO4 6H2O loses H20 stepwise as it is heated. Between 40c and 60c the monohydrate is formed and above 100c the anhydrous material is formed. What are the phosphorus percentages of the monohydrate and of the anhydrous material?
Write the structural formula of a mixed triglyceride containing the following three acids: linoleic acid
Calculate the volume of carbon dioxide at 20.0C and .950 atm produced from the complete combustion of 2.50 kg of methane. Compare your result with the volume of CO2 produced from the complete combustion of 2.50kg of propane (C3H8)
Suppose that 35.47 g of ice at -13.7°C is placed in 46.51 g of water at 96.7°C in a perfectly insulated vessel. Calculate the final temperature.
How many grams of NaNO2 form when 429 g NaNO3 react? The yield is 90.%.
The equation for the combustion of gaseous methanol is: 2CH3OH(g) + 3O2(g) ? 2CO2(g) + 4H2O(g) Estimate the ?H°rxn per mole of methanol combusted, using the bond energy data provided below
The "lead" in lead pencils is actually almost pure carbon, and the mass of a period mark made by a lead pencil is about 0.0001g How many carbon atom's are in the period?
Calculate the resulting pH if 455 mL of 0.200 M HCl is mixed with 315 mL of 0.0850 M Ca(OH)2.
Calculate the length in km of a row containing 1 mole of hydrogen atoms laid side to side if diameter of a hydrogen atom =.212 nm?
At 0°C a 1.00 L flask contains 6.90 10-2 mol N2, 4.40 102 mg O2, and NO at a concentration of 9.00 1018 molecules/cm3. What is the partial pressure of each gas, and what is the total pressure in the flask?
What is the mol fraction Na2SO4 in a solution which is 11.5% by weight Na2SO4 (molar mass Na2SO4 = 142.06 g/mol and H2O = 18.016 g/mol)?
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