Kinetics-Natural systems left to themselves move towards states of lower potential energy.?

Kinetics-Natural systems left to themselves move towards states of lower potential energy.? 150 150 Affordable Capstone Projects Written from Scratch

WHY?

 

1- Natural systems left to themselves move towards states of lower potential energy.?

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2- Lower energy configurations of elements happen when the elements get an electronic configuration similar to the nearest inert gas.?

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3- Lithium and sodium would tend to “lose” one electron.?

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4- When similar atoms such as H or O or N come together they can gain stability by sharing electrons in a covalent bond.?

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5- Nitrogen, hydrogen and oxygen atoms go to more stable configurations by forming the diatomic gases, N2, H2, and O2 respectively rather than remain in the atomic form.?

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6- To change the state of a system from lower to higher potential energy, one must therefore supply energy to the system. Why?

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7- Hydrogen and oxygen combine to form water. Which is more stable — hydrogen and oxygen gas separately, or in combination as water and why?

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8- In each of the following reactions:

– Name the product.

– Balance the reaction.

– Write the moles of each component.

– Say whether the reaction is endothermic or exothermic.

– Say whether the system is stable before or after the reaction.

Reaction Heat of Reaction
(kcal/mole)
1. H2 + O2   H2O -58.5
2. N2 + O2   NO2 +21.6
3. C +H2    C2H6 -20.2
4. C + H2   C3H8 -24.8
5. N2 + H2   NH3 -11.0

 

 

 

Good Luck

Dr. Kawkab Al-Naimi


 

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