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When 1 kg of a substance changes from solid to liquid at its melting point it must absorb an amount of heat equal to which of the following?
Wiki User
∙ 10y ago
It must absorb heat equivalent to its specific latent heat (Kilojoules per kilogram).
Wiki User
∙ 10y ago
Wiki User
∙ 14y agoDepends on which substance.
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Does melting lose or gain energy?
Generally, melting is the process of turning from a solid to a liquid. It entails gaining energy.
What substance's ability that can absorb or adsorb water vapor?
hygroscopicity
Which change of state causes cooling to the atmosphere?
Melting and evaporation of water. They both absorb energy to increase the internal enthalpy.
When substance give off light or another form of electromagnetic radiartion when they absorb energy?
Fluorescence
Does colour effect melting ice cubes?
It MAY. If the ice is in the sunlight, a dark color will absorb heat, and cause faster melting. We spread wood ash on snow and ice in the winter to speed melting- darker colors.
Does melting lose or gain energy?
Generally, melting is the process of turning from a solid to a liquid. It entails gaining energy.
What processes do particles of matter absorb energy freezing and boili condensation and melting melting and vaporization or sublimation?
Particles absorb energy when boiling (vapourising), melting and subliming. Particles release energy when freezing and condensing.
Do substances absorb or release heat energy as then change from a liquid to the solid phase?
When a substance changes from a liquid to a solid it releases energy. (You take the heat out)
What is a substance is water?
A substance which absorb a great quantity of water.
Which processes do particles of matter absorb energy?
condensation and melting
Why does an ice cube stay at 0c for a long time?
The enthalpy of fusion, or Specific heat of fusion/melting is the temperature that it takes for a substance to freeze/melt. Generally it is much greater than it would ordinarily take for the substance to increase 1 degree Celsius in either solid or liquid phase. So, while at the freezing/melting point, the substance can absorb energy without changing the temperature during the state change.
When you start heeting mixture of sulphur powder and iron filling you absorb that sulphur start melting or iron filling start melting?
iron starts melting
During which processes do particles of matter absorb energy?
condensation and melting
What substance's ability that can absorb or adsorb water vapor?
hygroscopicity
What does a substance absorb when it melts or boils?
Heat
What happens to substance during changes between gas to liquid?
The particles of the substance gain kinetic energy as they absorb heat energy. Eventually there is enough kinetic energy for the particles to escape the liquid phase, forming the gas phase.
What is the substance that the capillaries absorb from the lungs?
The capillaries absorb oxygen at the lungs. This occurs near the alveoli.
