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How does temperature happen?
Temperature is a measure of the kinetic energy of the particles in a substance. Temperature in Kelvin is proportional to kinetic energy of particles. Heat on the other hand depends on the amount of substance present.
What happen to the temperature of a substance during a phase change?
The temperature* remains unchanged. * The heat (energy) content changes.
What do you have to do to heat energy to freeze a substance?
To freeze a substance, you need to remove heat energy from it. This can be achieved through processes like refrigeration, where the substance is exposed to lower temperatures that cause it to release its heat energy, leading to freezing. External cooling methods, such as placing the substance in a freezer or using an ice bath, can also help to remove heat energy and freeze the substance.
What happen in terms of kinetic theory when you heat a substance?
When you heat a substance, its kinetic energy increases, causing the particles to move faster and further apart. This leads to an increase in the substance's temperature and potentially a change in state, such as melting or boiling.
Will a chemical reaction that asborbs energy happen with out a source of energy?
No, a chemical reaction that absorbs energy is called an endothermic reaction. The transfer of heat from the surrounds into the substance. In reactions, energy is always CONVERTED, not created which means that nothing can be converted i.e. heat to chemical if there is no heat or initial energy.
What is the measurement of how much heat energy is required for a substance to melt?
The measurement of how much heat energy is required for a substance to melt is called the heat of fusion. It is the amount of energy required to change a substance from a solid to a liquid at its melting point.
What equation represents the energy it takes to heat a sunstance?
The equation that represents the energy required to heat a substance is Q = mcΔT, where Q is the heat energy, m is the mass of the substance, c is the specific heat capacity of the substance, and ΔT is the change in temperature.
What is the technical term for heat contained in a substance?
The technical term for heat contained in a substance is "thermal energy". It refers to the energy that a substance possesses due to its temperature.
How does a substance gain heat?
A substance gains heat, or otherwise known as thermal energy, in many different ways. These can be from pressure, friction, the transformation of chemical energy to thermal energy, the transformation of electromagnetic energy to thermal energy, potential energy to the energy of motion (kinetic energy) or a substance can become exothermic during, and after a chemical change if the amount of energy produced from the broken bonds is greater than the amount of energy required for rearranged bonds to be made.
What is specific heat a measure of?
The amount of energy it takes to change the temperature of a substance by a certain amount. How much energy it takes to heat a substance ~APEX
What is the formula for calculating the heat energy transferred when the specific heat capacity and the change in temperature of a substance are known?
The formula for calculating the heat energy transferred is Q mcT, where Q represents the heat energy transferred, m is the mass of the substance, c is the specific heat capacity of the substance, and T is the change in temperature of the substance.
What can light energy change into heat energy?
If light is absorbed by a substance, it is converted to heat.
