Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?
rate = k[x][y]
rate = k[x]? im
rate = k[x]iy
od
rate = k[x]? ly?
oe. rate = k[y]

i need mutiple choices

let that person have a turn to speak : )

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