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When energy is released from a reaction is the value positive or negative?
Wiki User
∙ 10y ago
Both. One side of the equatioo loses energy and the other side gains it.
Wiki User
∙ 10y ago
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Does energy flow positive to negative or negative to positive with magnets?
positive to a negative
When you connect the positive to the negative and the negative to the positive does the battery dies?
If you connect the positive and the negative end of a battery directly with a cable, (1) you'll get dangerously high currents, and (2) the battery will quickly run out of energy. The battery itself might also get damaged, due to the high currents.
What happens when there are equal amounts of negative and positive electrons?
Unless they are kept apart, they will annihilate each other with a release of energy.
What are 2 positive point and 1 negative point about dams?
They are a useful energy sourceThey cause no pollution when producing energyThey are expensive to build
A battery has a difference in potential energy between the positive terminal and negative terminal which units express this difference in energy?
That's a difference in electrical potential, not potential energy.It's described in units of "volts".
Is free energy of cell reaction positive when emf of cell reaction is positive?
No, the free energy of a cell reaction is negative when the emf of the cell reaction is positive. This is because a positive emf indicates that the reaction is spontaneous and capable of performing work, resulting in a negative change in free energy.
What type of reaction is exothermic reaction?
The reaction in which energy is being released, and the overall energy change (enthalpy) is negative.
Where is the energy which is released during a chemical reaction stored to begin with?
The energy released during a chemical reaction is stored in the chemical bonds of the reactant molecules before the reaction occurs. During the reaction, these bonds are broken, and new bonds are formed, releasing the stored energy in the process.
What is the sign convention used in thermochemical calculations?
In thermochemical calculations, a common sign convention is that energy absorbed by a system is positive (endothermic process) and energy released by a system is negative (exothermic process). This convention helps in determining the direction of energy flow and whether a reaction is absorbing or releasing energy.
What is the difference between positive catalyst and negative catalyst?
The substances which increase the rate of a chemical reaction are called a Positive Catalyst whereas The substances which decrease the rate of a chemical reaction are called Negative Catalyst. Positive Catalyst decreases the Activation energy of reactant molecules whereas negative catalyst increases the Activation energy of the reactant molecules. Positive Catalyst is also called the Promoter whereas negative catalyst is also called Inhibitor.
Does energy flow positive to negative or negative to positive with magnets?
positive to a negative
Differentiate a positive catalyst from a negative catalyst?
A positive catalyst is a catalyst which speeds up the rate of a chemical reaction by lowering its activation energy. A negative catalysts slows the rate of a chemical reaction or makes it less likely to occur.
What is true of the enthalpy reaction?
The enthalpy of a reaction is a measure of the heat energy exchanged with the surroundings at constant pressure. A negative enthalpy change indicates an exothermic reaction, where heat is released. A positive enthalpy change indicates an endothermic reaction, where heat is absorbed.
Does energy flow through the negative or positive of a battery?
Energy flows from the negative terminal to the positive terminal of a battery.
Is thermal energy negative or positive?
Thermal energy is a form of kinetic energy due to the movement of particles within a substance. It is neither inherently negative nor positive; rather, it represents the total energy present in a system due to the motion of its particles.
How do you know if a reaction is entropy driven enthalpy driven or driven by both enthalpy and energy?
An entropy-driven reaction is one where the products have higher entropy than the reactants. An enthalpy-driven reaction is one where the products have lower enthalpy than the reactants. If both the entropy and enthalpy of the products are more favorable than the reactants, it is driven by both enthalpy and entropy.
According to the Gibbs free energy equation G H - TS when is a reaction always spontaneous?
when H is negative and S is positive
