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For a certain chemical reaction, DH is > 0 and DS is < 0. T- 1) We conclude the reaction must be non-spontaneous regardless of temperature and becomes even more so at higher temperatures 2) we conclude the reaction must be spontaneous regardless of temperature and becomes even more so at lower temperatures 3) we conclude the reaction may or may not be spontaneous, but spontaneity is favored by low temperatures. 4) we conclude the reaction may or may not be spontaneous, but spontaneity is favored by high temperatures. 5) we cannot make any conclusion about spontaneity or even tendencies from the limited information presented.
Based on the sign of E°cell, classify these reactions as spontaneous or nonspontaneous as written. Assume standard conditions. Al3+(aq) + 3Na(s) ---->Al(s) +3Na+(aq) 3Fe2+(aq)+2Cr(s)---->3Fe(s)+2Cr3+(aq) Zn2+(aq) + Sn(s)---->Zn(s) + Sn2+(aq)
estimate the enthalpy change for the combustion of hydrogen gas in the presence of oxygen gas.
a sample contains 67.0% of the R isomer and 33.0% of its enantiomer, what is the observed specific rotation of the mixture?
For the reaction 2C6H6 + 15O2 → 3CO2 + 6H2O 30 grams of C6H6 are allowed to react with 79.09 grams of O2.
The solid borax reagent is contaminated with a water-soluble substance that does not react with hydrochloric acid. As a result of this contamination, will Ksp of the borax be reported as too high, too low, or unaffected
Chemical-plant equipment costs rarely vary in proportion to size. In the simplest case, cost C varies with size S according to the allometric equation 18 Chemical Engineering Thermodynamics C = ?S?
What is the energy released when 0.711 g are converted to energy? Express your answer in joules. For self-consistent units you must use kg because 1 J = 1 kg m2/s2.
The empirical formula for hydride of silicon is SiH4, and it's central atom is silicon. Based on this information, you would expect the empirical
HCl (aq) + NaOH (aq) ? NaCl (aq) + H2O (l) A known amount of NaOH is added to a solution containing an unknown quantity of HCl (aq).
What is the de Broglie wavelength in cm, of a 11.9 g hummingbird flying at 1.12 102 mph? (1 mile = 1.61 km.)
Calculate the mass defect of the helium nucleus 4/2He. The mass of neutral 4/2He is given by Mhe= 4.002603u. Calculate the binding energy of Eb the helium nucleus 4/2He Calculate the binding energy per nucleon of the helium nucleus 4/2He
How many milliliters of 0.200 M NaOH will be required to titrate 19.6 mL of 0.479 M H2SO4
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