Question

2C0(g) + 4H2O (g) AH-1038 kJ AHy=-566 kJ X: 2CH (g)+30,(g) 2CO(g)+0,(g)2Co, (g) Y 3rd attempt See Periodic Table Part 1 (2 pts) Write the chemical equation obtained when reactions X and Y are added together to produce the reaction Z. Include the states of matter. Remember to write the lowest possible numeric values for the coefficients. x x. He (aq). 8 Z= Part 2 (2 pts) See Hint What is the value of AHz? kJ

Answer 1

X : 2 CH4 (g) + 3 0₂ (g) - 200(g) + 4H₂0g) Y: 2w1g) + O2(g) → 26(g) Z": 2 CH4 + 4 02 20₂ + 4H₂O divinding by 2. [z = CH4 (9)4 20,19) Co2+2H₂O (9) SH2 = (AH₂ + Aly) - -1038 + 1-566) = -1604 kJ AH₂ = AHz = -1604 - 1-802 kJ