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Had a chemistry worksheet and am stuck on these last few problems. Please help with any you can help with. Will rate!!
a) Why can a change be spontaneous even though the system entropy decreases? Identify a spontaneous change in which the entropy of the system decreases.
b) The heat of vaporization of 1.0 mole of water at 100 degrees celcius and 1.0 atm is 40.6 kJ. Calculate the change in entropy for the process H20(l)-->H20(g).
c) Calculate the free energy change for the following reaction and predict whether the reaction occurs spontaneously at 25 degrees celcius. H2(g)+CO2(g)-->H20(g)+CO(g); ?H=41.8 kJ, ?S=42.1 J/K
if 11.2 L of N2 are reacted to form NH3 at STP, how many liters of hydrogen will be required to consume all of the nitrogen
How much HCl gas can be produced at STP by reacting 198 g of NaCl with excess H2SO4?NaCl + H2SO4 ! NaHSO4 + HCl.
which is the stronger acid HCL or HBR and which is the stronger base Cl or Br?
A 4.05 g sample of a compound containing only C, H, and O was burned completely. The only combustion products were 10.942 g CO2 and 4.476 g H2O. What is the empirical formula of the compound.
what is the molar mass of a sample of gas that has a dnesity of 1.09 g/L at 1.02 atm pressure and 25.0C.
What is the overall order of the reaction?
A gaseous mixture of O2 and N2 contains 36.8 nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 545 mmHg ?
A 1.20 M solution of citric acid (H3C6H5O7) in water has a density of 1.10 g/cm3. Calculate the normality. Citric acid has three acidic protons.
What is the pH of the solution created by combining 11.20 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?
How you will protect an underground pipe line from corrosion and what are biodegradable polymers or what are conducting polymers
replacement compounds for the Freons have gone into production: HFC-134a (chemical formula: CH 2 FCF 3 ) and HCFC-124 (formula:CHClFCF 3 ) In 1991. Determine the molar masses of these two compounds
Organic Chemistry-In the mass spectrum of butylbenzene, the base peak occurs at m/z
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