Carbon dioxide and water are produced when pentane (CH) reacts with oxygen. What is the balanced equation for this reaction?
CH2(g) 0,(0) - CO,(0) + H2O(g)
CH2(g) 0,(0) - 5CO,(0) + H2O(g)
CH12(0) 80,(0) - SCO (0) + 6H206)
500,0) + 6H2O(g) - CH269) * 8079)
CH129) +5029) - 5C029) + 6H2(0)
CH2(g) +0,0) - CO,0) + H29)

the dissolution of polymer can be thermodynamically described in 2 steps.

може ли да зареждате повече информация, моля

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