1) Describe enthalpy and the role specific heat plays in the formula. 2) Explain the significance of the sign of the enthalpy value (+ or -) . Provide a specific example. 3) Explain Collision theory and describe the two factors required for a chemical reaction to occur. 4) Connect each of these circumstances to the rate of a reaction. Explain how the change in circumstances could be implemented in a lab and describe the predicted outcome: - Increased temperature - Decreased solution concentration - Increased surface area - Speeding up the reaction without being involved in the reaction. 5) Analyze Le Chatelier’s principle. 6) Based on this theory, what is the overriding guide to predicting outcomes when changes are imposed upon a reaction. What is the impact on equilibrium?

Explanation:

5) Le Chatelier's principle says, when in a reversible reaction any of the concentration or temperature or pressure are changed, then the equilibrium shifts such a way to nullify the changes occurred. (hope you get it)

R P

if concentration of reactant R is increased then eqm shifts towards the one with lower concentration ,that is product P.

forward direction is favoured.

if the above's reaction is endothermic, that is temp of product is low. So increasing temperature in such case reaction goes towards product.

forward direction is favoured.

If reaction is exothermic ,temp of reactant is more. So increasing temperature in such case, reaction goes towards reactants.

forward direction is favoured

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c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

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