to HNO3 (9) and NHs (g) Express your answer using one decimal place. Exercise 17

Question

to HNO3 (9) and NHs (g) Express your answer using one decimal place. Exercise 17.104 The salt ammonium nitrate can follow three modes of AG 94.0 kJ (a) to HNOs(9) and NH, (g). Submit My Answers Give Up (b) to N 0(9) and H20() (c) to N2(g), 02(g) and H20(g) Calculate AGfor each mode of decomposition at 298 K Correct Part B to N 0(g) and Ha0(9) Express your answer using one decimal place k.J Submit My Answers Give Up ncorrect: Try Again; 4 attempts remaining Part C to N2(g), 0,(g), and H20(9) Express your answer using one decimal place k.J

Explanation / Answer

Part B:

NH4NO3(s) - ----> N2O(g) + 2H2O(g)

delta Grxn = delta G of products - delta G of reactants

delta Grxn = (delta Gf of N2O + 2*delta Gf of H2O ) - (delta Gf of NH4NO3)

delta Grxn = (104.1816 + 2*-228.588 ) - (-184.01232)

delta Grxn = -168.982 KJ

Part C

NH4NO3(s) ---> N2(g) + 1/2O2(g) + 2H2O(g)

Same formula as above one

delta Grxn = (0 + 0 + 2*-228.588 ) - ( -184.01232))

delta Grxn = -273.163 KJ

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