5.3 Hess's Law and Enthalpy of Formation

5.3 Hess's Law and Enthalpy of Formation | General Chemistry

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@ShaliniSingh-vj1lh Жыл бұрын

In which grade this topic is

@minjugatto6950 4 ай бұрын

@@ShaliniSingh-vj1lh this topic comes up on the last two years of high school, depending on your school's curriculum, in General Chemistry.

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@noahboucher54 10 ай бұрын

A little confused, how do you know when to use hess's law or enthalpy of formation?

@muleyaluyando1124 2 ай бұрын

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@emilyyagudayev3671 11 ай бұрын

Where can thermodynamic data be found? Will it be provided in every problem?

@ChadsPrep 11 ай бұрын

you wouldn't be expected to memorize it so yes it will be provided unless you have a very mean Professor!

@daviduzodinma571 Жыл бұрын

Sir you said enthalpy of formation forms 1 mol of a single product but as for NO in your last calculation example, it formed a double product of N2O + NO2. Why did you still call it an enthalpy of formation reaction.

@carluy7351 Жыл бұрын

based on how i understand it, he showed in the last example how enthalpy of formation can simplify calculating the enthalpy changes of a reaction. We can simply take sum of the enthalpies of formation of each product and reactant, which are experimentally determined, and then subtract the values of products and reactants to find the delta H of the entire reaction. hope that makes sense (I'm only studying for the mcat, so my knowledge is not in-depth)

@TriNguyen-jv4jy 3 жыл бұрын

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@ChadsPrep 3 жыл бұрын

Excellent!