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Under ordinary conditions they are the same 'point'. For example, water just freezes and it just melts at zero degrees centigrade. The difference between the two states is not temperature, but the heat of fusion. When the heat of fusion is removed from water at zero degrees, it will freeze. When the heat of fusion is added to ice at zero degrees, it will melt.
What else can I help you with?
What is true of a melting point and a boiling point?
The melting point is the temperature at which a solid turns into a liquid, while the boiling point is the temperature at which a liquid turns into a gas. Both melting and boiling points are physical properties that are specific to each substance and can be used to identify and characterize materials.
Why fast rate of heating gives higher melting and boiling point than the true one?
A fast rate of heating can cause the temperature to rise quickly, potentially exceeding the actual melting or boiling point of the substance before it has had time to equilibrate throughout. This can make it seem like the substance has a higher melting or boiling point than it actually does, as it has not fully transitioned to the liquid or gaseous state due to the rapid temperature increase.
True or False- The freezing point of a substance is equal to the melting point of a substance?
True. The freezing point of a substance is the temperature at which it changes from a liquid phase to a solid phase, while the melting point is the temperature at which it changes from a solid phase to a liquid phase. In equilibrium, the freezing point and melting point of a substance are the same.
What are some properties you can identify by knowing the melting and boiling point of chemical?
The melting point can indicate the temperature at which a substance transitions from a solid to a liquid state, while the boiling point is the temperature at which it transitions from a liquid to a gas. These properties can provide insights into the substance's purity, intermolecular forces, and potential applications in various industries.
Is it true that particles can only evaporate from a liquid at temperatures above liquids boiling point?
It is not true; evaporation occur at the surface of a liquid and the temperature is under the boiling point.
Which is true of a melting point and a boiling point?
A melting point is the temperature at which a substance changes from a solid to a liquid state, while a boiling point is the temperature at which a substance changes from a liquid to a gas. Both melting and boiling points are characteristic physical properties of a substance and can be used to identify and classify materials.
What is true of a melting point and a boiling point?
The melting point is the temperature at which a solid turns into a liquid, while the boiling point is the temperature at which a liquid turns into a gas. Both melting and boiling points are physical properties that are specific to each substance and can be used to identify and characterize materials.
Are melting and boiling points of a substance the same?
The melting and boiling points of a substance (in this case I am assuming you are referring to a pure substance, and not a mixture), are the same. The triple point is defined by the temperature and pressure at which solid, liquid, and vapor of a substance, can coexist in equilibrium. At any pressure below the triple point, only sublimation and condensation are possible (no liquid phase is possible). Between the triple point pressure and the critical point pressure, there is a difference between the melting and boiling points, of a substance. The melting point temperature will be lower than the boiling point. At the critical point, the densities of the liquid and vapor phases, have merged, and boiling no longer occurs. At and above the critical point, you cease to get liquid and vapor, but you get what is referred to as a "supercritical fluid".
Why fast rate of heating gives higher melting and boiling point than the true one?
A fast rate of heating can cause the temperature to rise quickly, potentially exceeding the actual melting or boiling point of the substance before it has had time to equilibrate throughout. This can make it seem like the substance has a higher melting or boiling point than it actually does, as it has not fully transitioned to the liquid or gaseous state due to the rapid temperature increase.
Is it true or false that the temp. at which a liquid turns to a gas is called the boiling point?
True. The temperature at which a liquid turns into a gas is called the boiling point.
True or False- The freezing point of a substance is equal to the melting point of a substance?
True. The freezing point of a substance is the temperature at which it changes from a liquid phase to a solid phase, while the melting point is the temperature at which it changes from a solid phase to a liquid phase. In equilibrium, the freezing point and melting point of a substance are the same.
What are some properties you can identify by knowing the melting and boiling point of chemical?
The melting point can indicate the temperature at which a substance transitions from a solid to a liquid state, while the boiling point is the temperature at which it transitions from a liquid to a gas. These properties can provide insights into the substance's purity, intermolecular forces, and potential applications in various industries.
Is it true that particles can only evaporate from a liquid at temperatures above liquids boiling point?
It is not true; evaporation occur at the surface of a liquid and the temperature is under the boiling point.
Is this statement true or false saturated fats tend to be solid at room temperature while unsaturated fats tend to be liquid oils at room temperature?
True. Saturated fats have a higher melting point and tend to be solid at room temperature, while unsaturated fats have a lower melting point and are typically liquid oils at room temperature.
Is it true or false that the crystal lattice of ionic compounds affects their melting and boiling points?
True. The crystal lattice structure of ionic compounds plays a significant role in determining their melting and boiling points. The stronger the forces holding the ions in the lattice together, the higher the melting and boiling points of the compound.
Is it true that in fractional distillation of petroleum low-boiling hydrocarbons come out first?
Yes Since they have a lower boiling point, they have a higher vapor pressure - or to be more exact, a higher fugacity, than the higher boiling point components at the same temperature.
Weak dipole-dipole forces result in a what melting point?
The stronger the bonds between molecules; the higher the melting/boiling points. This makes sense if you think about it, melting/boiling is splitting up the molecules - the stronger they are bonded the more energy you will need
