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What is the name of a gas at the same temperature as its liquid state?
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What temperature does a liquid need to be at in order to evaporate?
Evaporation occurs at all temperatures, there is no set temperature for evaporation. The temperature would only affect the rate at which the liquid is evaporated - all other things being equal, warmer temperatures encourage faster evaporation. Evaporation will proceed much faster still if the surrounding air is very dry, and in constant motion.
How can a matter change from solid state to liquid state and reverse the process?
At a unique temperature, called the "freezing point", for each pure substance at a constant pressure, a solid form of the substance can change from solid to liquid phase by absorbing heat energy from its environment without raising the temperature of the substance, and, at the same temperature and pressure, a liquid phase of the same substance, can solidify without changing its temperature if it can transfer heat energy to the external environment.
What is the change of state when magma crystallizes to form ingeous rock?
It is according to what kind of material the lava is made from. If there are different minerals in the lava, then it is according to what temperature the mineral returns to the solid state, or a rock. Some minerals have a liquid temperature, close to the liquid temperature of another minerals, and chances are they will form in the same rock. Temperature determines what the rocks will become. Like gold is found in quartz. Their liquid temperatures are close so they form together.
What happens to the thermal energy of a substance during a physical change of state?
it will increase or decrease depending on the states. from solid --> liquid or liquid --> gas it is positive and endothermic, and thermal energy is increasing from liquid --> solid or gas --> liquid it is negative and exothermic, and thermal energy is decreasing
Does the temperature rise when the ice is melting?
Assuming you put a bowl of ice cubes into the fridge (which is well isolated, but the temperatue is above freezing level). The ice will begin to melt. Even if you turn the fridge off, the temperature in the fridge will drop as the ice takes up energy from the surrounding air to liquify. The answer is: Yes.
A gas at the same temperature as it's liquid state?
helium or vapour
Is boiling point is always same as the melting point?
NO!!! Boiling point is the temperature when a liquid changes to a gas. Melting point is the temperature when a solid changes to a liquid. Remember For rising temperatures It melts then boils For falling temperatures It condenses then freezes. Melting/Freezing point is the same temperature for change of state solid/liquid Boiling/Condensing point is the same temperature for change of state liquid/gas
What are 3 properties of a gas?
RarefiedAmorphous, taking shape of the containerLower Density than solid or liquid of the same compound.Higher energy state than solid or liquid of the same material.Either the same temperature as the corresponding solid or liquid if both are present, or a higher temperature if only the gas is present.
Is liquid silver worth anything?
Liquid silver is worth the same amount as solid silver. This is not its natural state, and it would have be kept at an extremely high temperature to remain liquid.
What are the observable changes in freezing water?
liquid to solid
What temperature does a liquid need to be at in order to evaporate?
Evaporation occurs at all temperatures, there is no set temperature for evaporation. The temperature would only affect the rate at which the liquid is evaporated - all other things being equal, warmer temperatures encourage faster evaporation. Evaporation will proceed much faster still if the surrounding air is very dry, and in constant motion.
What is true for two pieces of iron at the same temperature?
They will both be in the same state, for example both may be a solid, or both may be a liquid.
How can a matter change from solid state to liquid state and reverse the process?
At a unique temperature, called the "freezing point", for each pure substance at a constant pressure, a solid form of the substance can change from solid to liquid phase by absorbing heat energy from its environment without raising the temperature of the substance, and, at the same temperature and pressure, a liquid phase of the same substance, can solidify without changing its temperature if it can transfer heat energy to the external environment.
What does matter can change state mean?
The same substance can exist either as a solid, liquid or a gas and can change state depending on the temperature or external pressure.
What is the transfer of heat within a liquid?
when the temperature of the liquid is the same throughout.
Does the evaporation of liquid occur only at fixed temperature?
No. The temperature doesn't have to be the same for a liquid to evaperate. so if the temperature was constanly changing then the liquid could still evaperate.
How do you nitrogen from liquid nitrogen?
When gaseous nitrogen (such as that which forms about 70% of the air that we breathe) is cooled to below -196 C (-321 F, 77 K), it will condense into a liquid state (liquid nitrogen). At this same temperature, it boils, returning to a gaseous state.
