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How does the energy of a substance change during an exothermic change?
During an exothermic change, energy is released from the substance in the form of heat to the surroundings. This results in a decrease in the internal energy of the substance, leading to a decrease in its temperature.
What must always accompany a change in state?
Energy must always accompany a change in state, whether it is in the form of heat, work, or a combination of both. This energy is necessary to either break the bonds between particles during a phase change involving an increase in energy, or to form bonds between particles during a phase change involving a decrease in energy.
Why does the temperature stay the same during a state change?
During a state change, such as melting or boiling, the energy being added or removed is being used to break or form intermolecular bonds rather than increase or decrease the kinetic energy of the particles. This leads to a plateau in temperature until the state change is complete.
Do you need to increase or decrease the amount of heat energy to change a solid to a liquid?
Thermal (heat) energy must be added or removed in order to cause a change of state.
Does a catalyst decrease or increase the activation energy required?
The catalyst decrease the needed activation energy.
How does the law of conservation and the law of mass apply to change of state?
Well, when there is a change in state, mass doesn't increase or decrease (mass cannot be created nor destroyed). When there is a change in state, energy doesn't increase or decrease (energy cannot be created nor destroyed) although some of the energy may be lost as heat during the process.
How do the state of laws apply to changes of state?
When there is a change in state, mass doesn't increase or decrease (mass cannot be created nor destroyed). When there is a change in state, energy doesn't increase or decrease (energy cannot be created nor destroyed), although some of the energy may be lost as heat during the process.
How does the law of conservation of mass and energy apply to changes of state?
Well, when there is a change in state, mass doesn't increase or decrease (mass cannot be created nor destroyed). When there is a change in state, energy doesn't increase or decrease (energy cannot be created nor destroyed) although some of the energy may be lost as heat during the process.
How does the energy of a substance change during an exothermic change?
During an exothermic change, energy is released from the substance in the form of heat to the surroundings. This results in a decrease in the internal energy of the substance, leading to a decrease in its temperature.
Change in speed what kind of form of energy is that?
when you decrease or increase speed you are losing or gaining kinetic energy respectively
What must always accompany a change in state?
Energy must always accompany a change in state, whether it is in the form of heat, work, or a combination of both. This energy is necessary to either break the bonds between particles during a phase change involving an increase in energy, or to form bonds between particles during a phase change involving a decrease in energy.
What is the energy transferred by a force to a moving object.?
It could be an increase or decrease in its kinetic energy, or simply a change in the direction of motion.
Does mass increase during a nuclear change?
No, mass does not increase during a nuclear change. According to the principle of mass-energy equivalence (E=mc^2), the mass of the reactants is converted into energy during a nuclear change.
Why does the temperature stay the same during a state change?
During a state change, such as melting or boiling, the energy being added or removed is being used to break or form intermolecular bonds rather than increase or decrease the kinetic energy of the particles. This leads to a plateau in temperature until the state change is complete.
How does a change in mass affect the potential and kinetic energy of an object, and could you explain the specific impact of this change on the overall energy of the object?
When the mass of an object changes, its potential and kinetic energy also change. An increase in mass leads to an increase in potential and kinetic energy, while a decrease in mass results in a decrease in both types of energy. This change in mass directly impacts the overall energy of the object, as the total energy of the object is the sum of its potential and kinetic energy.
Do you need to increase or decrease the amount of heat energy to change a solid to a liquid?
Thermal (heat) energy must be added or removed in order to cause a change of state.
Does energy decrease or increase during a chemical reaction?
Energy can either decrease or increase during a chemical reaction depending on whether it is an exothermic reaction (energy is released) or an endothermic reaction (energy is absorbed). In an exothermic reaction, energy is released in the form of heat, and in an endothermic reaction, energy is absorbed from the surroundings.
