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awhat is special about a reversible processb suppose a reversible rocess is reversed restoring the system to its
the normal freezing point of n-octane c8h18 is -57 degca is the freezing of n-octane an endothermic or exothermic
the accompanying diagram shows how the free energy g changes during a hypothetical reaction ag bg rarr cg on the left
as shown here one type of computer keyboard cleaner contains liquefied 11-difluoroethane c2h4f2 which is a gas at
isomers are molecules that have the same chemical formula but different arrangements of atoms as shown here for two
the accompanying diagram shows how entropy varies with temperature for a substance that is a gas at the highest
awhat are the signs of s and h for the process depicted here gb how might temperature affect the sign ofc if energy can
two different gases occupy the two bulbs shown here consider the process that occurs when the stopcock is opened
when most elastomeric polymers eg a rubber band are stretched the molecules become more ordered as illustrated here
the following data compare the standard enthalpies and free energies of formation of some crystalline ionic substances
carbon disulfide cs2 is a toxic highly flammable substance the following thermodynamic data are available for cs2l and
most liquids follow troutons rule which states that the molar entropy of vaporization lies in the range of 88 plusmn
a voltaic cell that uses the reactiontl3aq 2cr2aq rarr tlaq 2cr3aqhas a measured standard cell potential of 119 va
awrite the half-reaction that occurs at a hydrogen electrode in acidic aqueous solution when it serves as the cathode
awhich electrode of a voltaic cell the cathode or the anode corresponds to the higher potential energy for the
a a voltaic cell is constructed with all reactants and products in their standard states will this condition hold as
a under what circumstances is the nernst equation applicableb what is the numerical value of the reaction quotient q
hydrogen gas has the potential as a clean fuel in reaction with oxygen the relevant reaction is2h2g o2g rarr
consider the general oxidation of a species a in solutiona rarr a e- the term oxidation potential is sometimes used to
the haber process is the principal industrial route for converting nitrogen into ammonian2g 3h2g rarr 2nh3gawhat is
some years ago a unique proposal was made to raise the titanic the plan involved placing pontoons within the ship using
awhat is meant by the term oxidationb on which side of an oxidation half-reaction do the electrons appearcwhat is meant
magnesium is produced commercially by electrolysis from a molten salt using a cell similar to the one shown herea what
for a spontaneous reaction aaq baq rarr a-aq baq answer the following questionsa if you made a voltaic cell out of
the accompanying graph illustrates the decay of 4288mox which decays via positron emissionawhat is the half-life of