The specific heat of aluminum is 0.900 J/g*°C, the specific heat of air is 1.01 J/g*°C and the specific heat of iron is 0.450 J/g*°C. Identify the correct statement.

A.)Air requires the most energy to increase its temperature followed by iron and then aluminum.
B.)Iron requires the most energy to increase its temperature followed by aluminum and then air.
C.)Air requires the most energy to increase its temperature followed by aluminum and then iron.
D.)Iron requires the most energy to increase its temperature followed by air and then aluminum.

i think its 100.

hope this !

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