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What does the delta h of a reaction represent?
Either the change (which the delta refers to) of the height (which the h represents).
What is delta h in the equation delta g delta h - t delta?
The change in enthalpy between products and reactants in a reaction
What does a negative delta H for a reaction suggest?
A negative delta H for a reaction suggests that the reaction is exothermic, meaning it releases heat to its surroundings. This implies that the products of the reaction have lower energy than the reactants.
What determine whether a reaction took place?
Use the following equation: delta G = delta H - T*deltaS. A reaction is spontaneous if delta G is negative. A reaction will always be spontaneous (under any temperature) only if the change in enthalpy (delta H) is negative and the change in entropy (delta S) is positive. If this is not the case, the reaction will only be spontaneous (negative delta G) for a range of temperatures (or could be always non-spontaneous)
What equation is used to calculate the free energy change a reaction?
Delta G (written triangle G) = Delta H -T Delta S
How is delta hf related to the delta h of the reaction?
The standard enthalpy change of a reaction (delta H) is related to the standard enthalpy of formation (delta Hf) of the products and reactants involved in the reaction by the equation: delta H = Σ(Products delta Hf) - Σ(Reactants delta Hf). This equation relates the enthalpy change of a reaction to the enthalpies of formation of the substances involved in the reaction.
How is delta g related to K?
K brings a process including delta g into equilibrium in a reaction. The two work together to maintain a reaction's equilibrium keeping it stable and helping it to continue at a stable rate.
What does the delta h of a reaction represent?
Either the change (which the delta refers to) of the height (which the h represents).
When is q equal to delta h in a chemical reaction?
Q is equal to delta H in a chemical reaction when the reaction is at constant pressure and temperature.
When does q equal delta h in a chemical reaction?
Q equals delta H in a chemical reaction when the reaction is at constant pressure and the temperature remains constant.
What is delta h in the equation delta g delta h - t delta?
The change in enthalpy between products and reactants in a reaction
What does a negative delta H for a reaction suggest?
A negative delta H for a reaction suggests that the reaction is exothermic, meaning it releases heat to its surroundings. This implies that the products of the reaction have lower energy than the reactants.
What is delta S in the equation delta G delta H - T delta S?
The change in enthalpy between products and reactants in a reaction
How can one determine the delta H of a reaction?
To determine the delta H of a reaction, one can use calorimetry to measure the heat released or absorbed during the reaction. This involves measuring the temperature change of the reaction mixture and using it to calculate the heat exchanged. The delta H value represents the change in enthalpy of the reaction.
Is the change in entropy, delta S, positive or negative for a spontaneous reaction?
For a spontaneous reaction, the change in entropy (delta S) is typically positive.
What determine whether a reaction took place?
Use the following equation: delta G = delta H - T*deltaS. A reaction is spontaneous if delta G is negative. A reaction will always be spontaneous (under any temperature) only if the change in enthalpy (delta H) is negative and the change in entropy (delta S) is positive. If this is not the case, the reaction will only be spontaneous (negative delta G) for a range of temperatures (or could be always non-spontaneous)
When a chemical reaction has a negative delta G is the reaction exothermic or endothermic?
When a chemical reaction has a negative delta G, the reaction is exothermic because delta G is the change in energy of a system and the change in its entropy. If the effect of a reaction is to reduce G, the process will be spontaneous so delta G is negative. Hope this helps :)
