Water gas (a mixture of carbon monoxide and hydrogen) is prepared by passing steam over red-hot coke: c(s) + h2o(g) → co(g) + h2(g) for many years, water gas was used as a fuel in industry and for domestic cooking. compare the heat produced by the complete combustion of 1 mole of methane (ch4) with a mole of water gas (0.50 mole h2 and 0.50 mole co) under standard conditions. (assume liquid water is formed.) what is the difference between the two values?

-605,5 kJ/mol of energy

Explanation:

Combustion of CH₄, CO and H₂ are:

CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(l)   ΔH = -890 kJ/mol

CO(g) + ¹/₂O₂(g) → CO₂(g) ΔH = -283 kJ/mol

H₂(g) + ¹/₂O₂(g) → H₂O(l) ΔH = -286 kJ/mol

The heat combustion of methane gives -890 kJ/mol of energy. The water gas gives the average of energy between the reactions, that is:

-283kJ/mol -286kJ/mol /2 = -284,5 kJ/mol of energy

Difference between the two values is:

-890kJ/mol - (-284,5kJ/mol) = -605,5 kJ/mol of energy

I hope it helps!

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)

c. orbital shape i hope this is correct