Question

b. (9 Points) Mobile phones are being developed that can be powered by methanol. Methanol can be made by a two-stage process. In the first stage, methane is reacted with steam to produce a mixture of carbon monoxide and hydrogen. CHⓇ+HOR) → CO(8)+ 3H ®) Use the data below to calculate the enthalpy change, in kJ mol, for the forward reaction. CO(g)+ 12048) CO,() AH = -283 kJ/mol H®+ 10,6) H.O AH = -242 kJ/mol CH(g) +202 (g) - CO2(g) + 2H2O(g) AH = -803 kJ/mol

Answer 1

Chy (9 44 () + H2013) 7.003) + 3H2(9) AH = ? Reversing equation ③ - Cox - 2009) + 120-13) on Reversing ☺ A4 = + 283ks/mol equation shing the verses in s AH value reverses i and magnitude remains the same. Reversing equation ③ - 720 (2) Hu (g) + 1/01 (8) AH = +242 kJ/mol - Multiplying by equation 3- 342019) — 34,48) +30,(3) AH 4726 ks]amal - Adding equation 4 © f® me get- c0f19) —— C019) + 139519) AH = +283 ks |mol 34,019) —34,(9) +3,6; ) 14 = +72665 mol CH4 (9) + 26219) 46,13). +2420 (9) DH = -803 kg/mol CH419) + H2009) 47 (019) + 3418) AH = +1837726-803 TAH = + 206ks/mol. I