luludragonhart2
luludragonhart2 luludragonhart2
  • 13-09-2018
  • Chemistry
contestada

CO + H_2 + O_2 --> CO_2 + H_2_O: Delta H= 525 kj

CO H2 O2 gt CO2 H2O Delta H 525 kj class=

Respuesta :

znk
znk znk
  • 14-09-2018

ΔH = -730 kJ

Treat the energy as if it were a product in the equation. You get

CO + H₂ + O₂ → CO₂ + H₂O + 525 kJ

Then you do an ordinary stoichiometry calculation.

Step 1. Convert grams of water to moles of water.

Moles of H₂O = 25 g H₂O × (1 mol H₂O/18.02 g H₂O) = 1.39 mol H₂O

Step 2. Calculate the energy change

ΔH = 1.39 mol water × (-525 kJ/1 mol H₂O) = -730 kJ

Answer Link

Otras preguntas

A substance whose shape can easily change is a a. solid. b. powder. c. fluid. d. metal.
Why did Nixon order US forces to mine North Vietnamese harbors in 1972? to intimidate the Viet Cong to end the Tet Offensive to cut off supplies to North Vietna
what is 0.57 divided by 30 with an explanation
The _____ era was an artistic movement in the late 1800s that encouraged imagination and individualism.
Describe three ways land was divided during the middle age? is it Some people moved to the countryside and focused on agriculture. Small, independent economies
What is 4 over 10 in simplest form
Have you (rode, ridden) on the hay wagon?
When you add a garnish, it's a good idea to A. use a color that's already prominent in the dish. B. create it from ingredients used in the meal. C. consider how
how did trade contribute to United States territorial growth
For which invention did Guglielmo Marconi win the Nobel Prize in Physics?