owLv2 | Online teaching ans lea When NHy(g) reacts with O:(z) to form N,0(g) and

Question

owLv2 | Online teaching ans lea When NHy(g) reacts with O:(z) to form N,0(g) and HOND), 342 kJ of energy are evolved for each mole of NH (g) that reacts Write a balanced thermochemical equation for the reaction with an energy terns in kJ as part of the equation. Note that the answer box for the energy term is case sensitive Use the SMALLEST INTEGER coefficients possible and put the energy term (iscluding the units) in the last hex on the apprepriate side of the equation. If a box is not needed, leave it blank NH -| N,0 B 684 n emor has been detected in your answer Check for typos Retry Entire Group 7 more group attempts remaining Cengage Learning 1 Cenpage Technical Support MacBook Pro

Explanation / Answer

NH3(g) + O2(g) = N2O(g) + H2O(l) + 342 kJ/1 mol of NH3

smallest integer possible:

Balance N

2NH3(g) + O2(g) = N2O(g) + H2O(l) + 342 kJ/1 mol of NH3

Balance H

2NH3(g) + O2(g) = N2O(g) + 3H2O(l) + 342 kJ/1 mol of NH3

balance O

2NH3(g) + 2O2(g) = N2O(g) + 3H2O(l) + 342 kJ/1 mol of NH3

balance heat

2NH3(g) + 2O2(g) = N2O(g) + 3H2O(l) + 2*342 = +684 kJ/1 mol of NH3

this is balanced:

2NH3(g) + 2O2(g) = N2O(g) + 3H2O(l) + +684 kJ

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