Respuesta :
(1) CO(g) + H2 + C(s) + H2O(g) (g) ΔH = 131.3kJ
(2) CO(g), H2O(g), CO2(g), H2(g), H = -41.2kJ
(3) CH4(g)+H2O(g)3H2(g)+CO(g)H = 206.1kJ
The result of adding 2(1) + (2) is:
CO2(g) + 3H2(g) + CO2(s) + 3H2O(g) (g) H equals 131.3kJ2 plus -41.2kJ to 221.4kJ.
Now, adding the product of this reaction to (3) returns:
CH4(g) + CO2 = 2C(s) + 2H2O(g) (g) H=221.4 kJ − 206.1 kJ = 15.3 kJ
what is chemical reactions ?
- chemical reaction, often known as the conversion of one or more chemicals (sometimes referred to as reactants) into one or more other compounds (the products)
- In a chemical reaction, all atoms that make up the reactants are rearranged to produce various products.
- Physical changes and reactions must be differentiated. State changes, like ice melting into water or water evaporating into vapor, are examples of physical changes.
- If a substance undergoes a physical change, its chemical identity will not change, but its physical attributes will. Water (H2O) is the same substance, with each molecule consisting of two hydrogen atoms and a single oxygen atom, regardless of its physical state.
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