answersLogoWhite

0


Best Answer

when two protons are put togehter alone.

User Avatar

Wiki User

15y ago
This answer is:
User Avatar
More answers
User Avatar

AnswerBot

4mo ago

A change in energy is always negative when an object loses energy, such as when work is done against friction or when heat is transferred away from the system. This results in a decrease in the object's total energy.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: When is change in energy always negative?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Physics

Can binding energy be negative?

No, binding energy cannot be negative. Binding energy is always a positive quantity that represents the energy required to hold a system together. If the binding energy were negative, it would imply that the system is in an unstable state.


In what way will the gibbs free energy always be negative?

The Gibbs free energy will always be negative for a spontaneous reaction at constant temperature and pressure. This suggests that the reaction is thermodynamically favorable and can proceed without the input of external energy.


Is it possible for a system to have negative potential energy?

Yes. Potential energy can't be specified in absolute terms; you have to arbitrarily define a reference point. For the case of gravitation, any object below the reference point would have negative potential energy. What matters is not the number assigned to the potential energy, but the difference - this difference would be the same, even if you change your reference level.


Can an object have a negative potential energy?

No, potential energy is always measured as a positive value. It represents the stored energy an object has due to its position or configuration in a system. Negative values are not typically used to represent potential energy.


Is all the energy transferred during an energy change always useful?

No, not all energy transferred during an energy change is always useful. Some energy may be lost as heat or sound, decreasing the overall efficiency of the energy transformation. This is known as energy wastage, and it occurs in many natural and human-made processes.

Related questions

Why is the enthalpy change of combustion always negative?

The enthalpy change of combustion is always negative because it involves the breaking of bonds in the reactants, which requires energy input, and the formation of new bonds in the products, which releases energy. The energy released during bond formation is greater than the energy required for bond breaking, resulting in a net release of energy, hence the negative value.


Can binding energy be negative?

No, binding energy cannot be negative. Binding energy is always a positive quantity that represents the energy required to hold a system together. If the binding energy were negative, it would imply that the system is in an unstable state.


Is potential energy in k-shell is negative then why?

bcoz the energy of bound system is always negative


Why is the hydration of an ion always negative?

The hydration of an ion is negative because energy is released when water molecules surround and stabilize the ion. This release of energy is favorable and results in a negative enthalpy change. The hydration process is exothermic, meaning it releases heat.


According to the Gibbs free energy equation G H - TS when is a reaction always spontaneous?

when H is negative and S is positive


In what way will the gibbs free energy always be negative?

The Gibbs free energy will always be negative for a spontaneous reaction at constant temperature and pressure. This suggests that the reaction is thermodynamically favorable and can proceed without the input of external energy.


Which is a negative impact of the use of ethanol for energy?

Climate change


What is a negative impact of the use of ethanol for energy?

Climate change


Is it possible for a system to have negative potential energy?

Yes. Potential energy can't be specified in absolute terms; you have to arbitrarily define a reference point. For the case of gravitation, any object below the reference point would have negative potential energy. What matters is not the number assigned to the potential energy, but the difference - this difference would be the same, even if you change your reference level.


Why are most electron affinities negative numbers?

Most electron affinities are negative because when an electron is added to an atom, energy is released. This released energy causes the system to become more stable, resulting in a negative change in energy. The negative sign indicates that energy is released during the process.


Predict whether the changes in enthalpy entropy and free energy will be positive or negative for the freezing of water and explain your predictions How does temperature affect the spontaneity?

The changes in enthalpy, entropy, and free energy are negative for the freezing of water since energy is released as heat during the process. At lower temperatures, the freezing of water is more spontaneous as the negative change in enthalpy dominates over the positive change in entropy, making the overall change in free energy negative and leading to a spontaneous process.


What always accompanies a phase change?

A change in energy, such as heating or cooling, always accompanies a phase change in matter. This energy is required to break or form intermolecular forces between particles in order to change the physical state of the material.