Calculate δgelec if one mole of sodium ions is moved from air for which d1=1.00 into water at t=300k. note that between the temperatures of t=273k and t=373k the dielectric constant of water has the temperature dependence d2=176−0.327(tk) where t is the temperature in kelvin units. note: in the equation for the the dielectric constant of water the notation tk means you enter the numerical value for the temperature into the equation, but without the units k. assume the radius of a sodium ion is r=2.00x10^-10m.

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it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol