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What will happen to happen to the state of the substance the atomic or molecular activity and the shape of the graph when thermal energy is added?
Wiki User
∙ 13y ago
When you add thermal energy you are going to do two things: you will cause a progressive change of phase from solid to liquid to gas to plasma, and you will raise the temperature causing increased atomic/molecular activity. Unless you identify the axes of the graph, I don't know what graph you are talking about and can't talk about the shape of whatever it is you are graphing.
Wiki User
∙ 13y ago
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What happens to the motion of molecules of matter when an object gains or loses thermal energy?
Increasing temperature means increased kinetic energy on the atomic or molecular level. Temperature of a given substance is the average kinetic energy of the particles of which that substance is composed.
The measurement of kinetic or thermal energy is known as what?
When the energy is molecular, atomic, or ionic, it is known as temperature. It is kinetic because the temperature is the mean kinetic energy of these particles. This, by definition, is the thermal energy.
Why does a metal spoon feel cooler than a piece of wood at 20C?
Because metal has better thermal conductivity than wood. Thermal conductivity depends of the atomic and molecular structure of the stuff. The air is a poor thermal conductor, but water is better.
Define one mole of a substance applied to atomic structure?
A mole is used to measure the amount of substance.1 mole of any substance contains 6.023 x 1023 molecules of that substance. 1 mole of a substance has mass equal to the atomic weight or molecular weight expressed in grams. Note:The number "6.023 x 1023" is called Avogadro's Number
What temperature scale places zero at the point where all atomic and molecular motion ceases?
On the Kelvin scale, zero is the temperature at which there is no atomic or molecular motion.
What is molar atomic mass?
The atomic (molecular) weight of a substance is its molar mass.
What happens to the motion of molecules of matter when an object gains or loses thermal energy?
Increasing temperature means increased kinetic energy on the atomic or molecular level. Temperature of a given substance is the average kinetic energy of the particles of which that substance is composed.
How do you make atomic hydrogen from molecular hydrogen?
(i) By thermal dissociationWhen molecular hydrogen is heated at 5000C,it dissociates into atomic hydrogen.(ii) By electric dischargeAt o.1 mm Hg to 1.00 mm Hg pressure
What the molecular mass of MgF2?
The Atomic Mass of Mg is 24. The atomic mass of fluorine is 19. Therefore the relative mass of the substance is 62.
What is the molecular formula of silver?
Ag is the molecular formula for silver. If you look on a periodic table, you will find this substance with the transitional metals and with the atomic number of 47.
The measurement of kinetic or thermal energy is known as what?
When the energy is molecular, atomic, or ionic, it is known as temperature. It is kinetic because the temperature is the mean kinetic energy of these particles. This, by definition, is the thermal energy.
What is the mass of a single molecule of water?
- calculate the molecular mass of the substance from the atomic weights of the contained elements - 1 molecule gram of any substance contain 6,023 141 79.1023 molecules (Avogadro number) - mass of a single molecule is: Molecular mass in grams/Avogadro number
Explain why two substance can have the same temperature but different amounts of thermal energy?
Because energy is related to the atomic mass of the substance (1/2 mv^2 and all that). So, at the same temperature a more massive substance has a greater thermal energy.
The atomic mass of a mole?
When isotopes are considered, they have the same atomic number but differed mass numbers.
What is the heat in the substance really a measure of?
Heat is a measure of the molecular and atomic excitation of the substance, i.e. the degree of vibration that it has available to impart to other substances that it comes into contact with.
How does solar energy goes from electromagnetic energy to thermal energy?
When photons (light particles) are absorbed by a substance, the energy of the photon is converted into kinetic energy among the atoms within the substance. As the atomic kinetic energy (motion) within a substance rises, so too does the temperature (thermal energy) of that substance.
Why does a metal spoon feel cooler than a piece of wood at 20C?
Because metal has better thermal conductivity than wood. Thermal conductivity depends of the atomic and molecular structure of the stuff. The air is a poor thermal conductor, but water is better.
