How much heat is absorbed during production of 112g of no by the combination of nitrogen and oxygen? . n2(g)+o2(g)→2no(g), δh = + 43 kcal/mol

Answer : The heat absorbed during the reaction is 160.4 kcal

Explanation :

First we have to calculate the number of moles of NO.

Molar mass of NO = 30 g/mole

Now we have to calculate the heat absorbed during the reaction.

or,

where,

= enthalpy change = +43 kcal/mol

q = heat absorb = ?

n = number of moles of NO = 3.73 mol

Now put all the given values in the above formula, we get:

Therefore, the heat absorbed during the reaction is 160.4 kcal