This is really confusing. I know how to do the equilibrium which also has to do with reaction rates but they didb't give it to me as a choice. Please Please help me. I post other questions that i answered already but no one answered me. I just needed someone to check them for me. Will someone please help me with this.
Which of the following equations is used to describe reaction rates?
∆H - T∆S
S^products - S^reactants
∆[reactant or product]/∆time
pV = nRT
I answered this above as part of a 15 question post (under science). The answer here is #3.
Of the given choices, the correct equation used to describe reaction rates is
∆[reactant or product]/∆time
This equation represents the change in concentration of either the reactant or product over time. It is commonly used to quantify the rate at which a chemical reaction occurs. To determine the rate of a reaction, you can measure the change in concentration of a reactant or product at different time intervals and divide it by the corresponding time intervals.
To clarify the other choices you mentioned:
∆H - T∆S represents the change in enthalpy of a reaction (ΔH) minus the product of temperature (T) and the change in entropy (ΔS). This equation is associated with the calculation of Gibbs free energy (ΔG) but not with reaction rates.
S^products - S^reactants refers to the difference in entropy (S) between the products and reactants of a reaction. This equation is related to thermodynamics and the feasibility of a reaction, but not directly to reaction rates.
pV = nRT is the ideal gas law, which describes the relationship between pressure (p), volume (V), number of moles (n), gas constant (R), and temperature (T). Although it does not directly describe reaction rates, it can be used in certain cases to calculate reaction rates indirectly by determining changes in gas pressure or volume over time.
If you have other questions or if you would like me to check any answers you have, please provide the specific questions or answers so that I can assist you further.