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What is the difference between endothemic and exothemic?
The terms "endothermic" and "exothermic" refer to whether a chemical reaction absorbs or releases heat, respectively. In an endothermic reaction, heat is absorbed from the surroundings, while in an exothermic reaction, heat is released into the surroundings.
Which of the following statements is true Chemical reaction rates vary with the conditions of the change but nuclear rates do not Nuclear decay rates vary with the condition?
Nuclear decay rates do not vary with the conditions of the change; they are constant for a given isotope. On the other hand, chemical reaction rates can vary with conditions such as temperature, pressure, and the presence of catalysts.
What 2 conditions might change the rate of an enzymatic reaction?
pH and temperature
Which reaction occurs most rapidly at standard conditions?
Reactions with a higher magnitude of standard Gibbs free energy change (ΔG°) tend to occur more rapidly at standard conditions, as it reflects the spontaneity of a reaction. Additionally, reactions with lower activation energy (Ea) values typically proceed more rapidly as they require less energy to initiate the reaction. Ultimately, the rate of a reaction at standard conditions depends on the specific reaction mechanism and kinetics.
What does not describe a non spontaneous reaction?
A non-spontaneous reaction is typically characterized by requiring a continuous input of energy to proceed and does not occur naturally under standard conditions. It is not driven by an increase in entropy; instead, it often leads to a decrease in entropy. Additionally, non-spontaneous reactions do not have a negative Gibbs free energy change (ΔG > 0). Therefore, they do not occur spontaneously without external intervention.
What is the difference between endothemic and exothemic?
The terms "endothermic" and "exothermic" refer to whether a chemical reaction absorbs or releases heat, respectively. In an endothermic reaction, heat is absorbed from the surroundings, while in an exothermic reaction, heat is released into the surroundings.
3 conditions that will influence the direction a reaction will go?
change in concentration change in temperature change in pressure
How might ou cause an endothemic chemical change to begin and keep going?
By heat , the more you add the more it keep going on
Which of the following statements is true Chemical reaction rates vary with the conditions of the change but nuclear rates do not Nuclear decay rates vary with the condition?
Nuclear decay rates do not vary with the conditions of the change; they are constant for a given isotope. On the other hand, chemical reaction rates can vary with conditions such as temperature, pressure, and the presence of catalysts.
What 2 conditions might change the rate of an enzymatic reaction?
pH and temperature
Why might the actual energy change for a reaction be different from the predicted energy change?
The actual energy change for a reaction might be different from the predicted energy change due to experimental errors, incomplete reactant conversion, side reactions, impurities in reactants, or inaccurate assumptions about reaction conditions. Kinetic factors such as reaction rates and temperature variations during the reaction can also contribute to discrepancies between predicted and actual energy changes.
What is the difference between delta G and delta G degree in thermodynamics?
In thermodynamics, delta G represents the change in Gibbs free energy for a reaction under specific conditions, while delta G degree represents the standard Gibbs free energy change for a reaction under standard conditions.
What is the enthalpy of reaction-?
the heat released or absorbed in a reaction
Hess's law is based on what principle?
Hess's law is based on the principle that the enthalpy change of a reaction is independent of the pathway taken. This means that the overall enthalpy change for a reaction is the same, regardless of the number of steps involved in the reaction as long as the initial and final conditions are the same.
Can be determined if the substance does not change?
If the substance does not change, then it can be assumed that there was no physical or chemical reaction. Depending on what you are trying to accomplish, further testing with different substances or conditions may be necessary.
What can be determined if the substance does not change?
If the substance does not change, then it can be assumed that there was no physical or chemical reaction. Depending on what you are trying to accomplish, further testing with different substances or conditions may be necessary.
What is the average rate of formation of I2?
The rate of formation of I2 can be determined by dividing the change in concentration of I2 by the change in time. The specific value would depend on the reaction conditions and rate constants involved in the reaction.
