Given the standard enthalpies of formation for the following substances, determine
the reaction enthalpy for the following reaction
2NH4(8) + 2NO3(8) - 3N (8) + 4H2O(g) DM?
Substance
N Hals)
NO (8)
Hols)
DHi in kJ/mol
+95.4
+331
241.8

answer: you could do some invislibe ink.

explanation: i will tell you how to if u answer my question.

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.