5) a solven with a surface tension equal to 82.50 dyne/cm and density of 1.150 g/cm^3. When capillary tube insert, the measured capillary rise, h equal to 0.950cm. Calculate radius of capillary tube 6) an aqueous solution with a surface tension of 42.00 dyne/cm and density equal 1.010 g/cm^3. Calculate the capillary rise, h of this soluion wheb capillary tube with a radius of 0.060 cm is inserted in the solution

the correct answer would be d. hope this !

1.43 x 10^-11 j the guy commented the awnser just making sure u see it .

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