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Why it is necessary to mention physical states of reactants and products in thermochemical reaction by hess's law?
Wiki User
∙ 6y ago
Hess's law is important to thermochemistry because it allows us to anticipate enthalpy changes of reactions that are too slow to realistically record, such as rusting or reactions that are too fast. Hess's law, stating that the enthalpy is the same regardless of the pathway, allows us to take known enthalpy values and substituting them in to find your target reaction's enthalpy change. Credentials: I almost have a high-school diploma :P, so don't quote me; u won't sound any smarter than I do. S14 ftw!
Wiki User
∙ 16y ago
Wiki User
∙ 12y agoit calculates the heat from inatial - the final.
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Thermochemical equations are chemical equations that include the of the reaction.?
Termochemical reactions include the enthalpy of reactants and products.
How do you find coefficients in chemistry equations?
It is necessary to know the reactants, the products and the valences.
What represents the correct way to write a chemical equation reactants--products products equals reactants reactants equals sum sum--- reactants?
reactants ---> products
What represents the correct way to write a chemical equation reactants ----- products products equals reactants reactants equals sum sum ---- reactants?
reactants -----> products is correct
What chemists may say that reactants products?
The answer is Reactants Yield Products.
Why it is necessary to mention physical states of reactants and products in thermochemical equation?
because energy produced by a therm chemical reaction depends upon physical state
Thermochemical equations are chemical equations that include the of the reaction.?
Termochemical reactions include the enthalpy of reactants and products.
How do reactants and products and compar before and after a chemical reactgion?
The products have different physical and chemical properties than the reactants.
How do you find coefficients in chemistry equations?
It is necessary to know the reactants, the products and the valences.
In a heterogeneous equilibrium system the reactants and products exist in what?
Different physical states
Which is a characteristic of chemical equilibrium but not physical equilibrium?
the reactants and products are different substances
What represents the correct way to write a chemical equation reactants--products products equals reactants reactants equals sum sum--- reactants?
reactants ---> products
What represents the correct way to write a chemical equation reactants ----- products products equals reactants reactants equals sum sum ---- reactants?
reactants -----> products is correct
Are the products favored over the reactants or the reactants favored over the products?
keq3.5: products favored keq0.003: reactants favored
How many reactants and products are presented in a double replacement reaction?
2 reactants and 2 products
What chemists may say that reactants products?
The answer is Reactants Yield Products.
What happens to the reactants when a chemical change occurs?
The reactants change & turn into products.
