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for a certain chemical reaction dh is gt 0 and ds is lt 0 t- 1 we conclude the reaction must be non-spontaneous
for a certain chemical reaction dh is lt 0 and ds is lt 0 this means that 1we conclude the reaction must be spontaneous
560 ml of a 120 m solution is diluted to a volume of 248 ml a 124-ml portion of that solution is diluted using 157 ml
describe an experiment that could prove that the adh-catalyzed oxidation of ethanol to acetaldehyde is
if 113 x 104j of heat is added to a water sample and the temperature rises from 880c to its boiling point what mass
the gas of2 can be produced from the electrolysis of an aqueous solution of kf as shown in the equation below of2g
the standard enthalpy of reaction dhdegrxn for c2h2g 2 h2g reg c2h6g is -3115 kj mol-1 determine the value of dedegrxn
a total of 200 molof a compound is allowed to react with water in a foam coffee cup and the reaction produces 106g of
draw a structure for a compound that meets the following description c7h8 with ir absorptions at 1600 and 1500 cm-1 and
what were two significant differences between the spectra of curcumin and
a 6525 g sample of cuso4bull5h2o m 2497 is dissolved in enough water to make 0800 l of solution what volume of this
a 106-g iron bullet with a speed of 500 102 ms and a temperature of 200deg c is stopped in a 0400-kg block of wood also
ice at 00deg c is mixed with 900 102 ml of water at 230deg c how much ice must melt to lower the water temperature to
a high jumper of mass 800 kg consumes a meal of 200 103 kcal prior to a jump if 33 of the energy from the food could be
a bubble rises from the bottom of a lake of depth 900 m where the temperature is 3deg c the water temperature at the
which of the following elements are capable of forming compounds in which the indicated atom has more than four valence
athe molar heat capacity of silver is 2535jmolc how much energy would it take to raise the temperature of 114g of
the solubility of n2 in blood at 37degc and at a partial pressure of 080 atm is 56 10-4 moll a deep-sea diver breathes
calculate the standard change in gibbs free energy for the following reaction at 25 degc 2c2h6 g 7o2 g -gt 4co2 g 6
in parts of the midwestern united states sirens sound when a severe storm that may produce a tornado is approaching
it takes 510j to raise the temperature of an 114g piece of unknown metal from 130c to 250c what is the specific heat
a 16-m-long string fixed at both ends vibrates at resonant frequencies of 708 hz and 1062 hz with no other resonant
what kind of mechanism can better account for the product mixture obtained from the dehydration of cis- and