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Name one metal which does not react with oxygen when heated?
Gold is a metal that does not react with oxygen when heated, even at high temperatures. This is because gold is a noble metal with low reactivity.
Give one advantage of making the frame from smart alloy instead of an ordinary metal?
It can go back to its original shape when it is heated.
How do you know the wavelength of a metal compound when heated?
The wavelength of light emitted by a heated metal compound can be determined using spectroscopy. When the compound is heated, it emits light at specific wavelengths corresponding to the energy levels of its electrons. By using a spectroscope or a spectrometer, one can analyze the emitted light and identify the wavelengths. Additionally, the relationship between wavelength and temperature can be explored through Planck's law and Wien's displacement law.
Why does the conductivity of a metal increase when a metal is cooled?
conduction is basically the flow of electrons from one end to the other in a conductor. lets take the example of a metal rod. the metal rod can conduct electricity as the electrons are able to flow and the resistance offered by the cations is relatively low. however, when the metal rod is heated, the cations start vibrating as energy is supplied to them. vibrating cations cause greater hindrance to the movement of electrons and thus, the conductivity decreases.
Example of produce gas in physical change?
A piece of metal that is heated will expand and produce gas due to the reaction of the metal with oxygen in the air, forming metal oxides. This is a physical change because the metal itself does not change its chemical composition, but it does result in the production of gas as one of its observable effects.
When a metal rod is heated at one end which end is hotter?
The end that is being heated should be hotter than the other end.
When one end of a metal is heated?
When one end of a metal is heated, the particles at that end begin to vibrate more rapidly, transferring kinetic energy to neighboring particles along the metal. This causes the metal to conduct heat from the hot end to the cooler end, resulting in the temperature of the entire metal eventually equalizing.
When one end of a piece of metal is heated what happens?
When one end of a piece of metal is heated, the metal molecules gain energy and vibrate more rapidly. This causes the molecules to expand, leading to the expansion of the metal itself. As a result, the metal will bend or warp due to the uneven distribution of heat throughout its structure.
What happens when one end of a metal slab is heated and ice is placed on the other end?
Heat will be transferred through the metal and begin melting the ice at the other end. Metal is a very good conductor of heat and heat like most other things prefers to equalize itself if possible.
Why metal spoon is heated at one end and the heat is felt at the other and after a while?
The heat is transferred along the metal spoon through a process known as conduction. When one end of the spoon is heated, the particles at that end gain energy and vibrate, transferring heat energy to neighboring particles. This vibration and transfer of energy continues along the length of the spoon until the other end also becomes heated.
When a metal rod is heated at one end what energy transfer takes place in the rod?
In a metal rod, heat transfer occurs through conduction. When one end of the rod is heated, the atoms at that end gain kinetic energy and vibrate more, which then pass on this energy to neighboring atoms through collisions, carrying heat along the rod. This results in a gradual increase in temperature along the length of the rod as heat is conducted from the hot end to the cooler end.
Name one metal which does not react with oxygen when heated?
Gold is a metal that does not react with oxygen when heated, even at high temperatures. This is because gold is a noble metal with low reactivity.
What happens when heat moves by conduction from one end of a metal spoon to another?
When heat moves by conduction from one end of a metal spoon to another, the particles in the hot end of the spoon vibrate faster, transferring kinetic energy to neighboring particles. This process continues along the spoon, causing the temperature to gradually equalize. Metal is a good conductor of heat, so the temperature transfer happens efficiently.
What is the process of heat transfer through a metal?
Heat transfer through a metal occurs through conduction, where thermal energy is transferred through the vibrating atoms or electrons in the metal lattice. When one part of the metal is heated, the energy is passed along the metal through collisions between neighboring atoms or electrons, causing them to vibrate and transfer the heat energy. Heat travels from the hot end to the cooler end until thermal equilibrium is reached.
When a metal rod is heated at one end why does the other end become hot?
When a metal rod is heated at one end, the heat is transferred through the rod via conduction. The atoms at the heated end gain kinetic energy and vibrate rapidly, transferring this energy to neighboring atoms. This process continues down the rod, eventually causing the other end to become hot as well.
If two similar pieces of metal are heated one to red hot and the other just hot are plunged into water why does the hotter piece cool the quickest?
metal
What happens to bimetallic strip when it is heated and cooled?
When a bimetallic strip is heated, the two metals expand at different rates causing the strip to bend towards the metal with the lower coefficient of thermal expansion. Conversely, when the strip is cooled, it bends towards the metal with the higher coefficient of thermal expansion. This bending action can be harnessed for applications like thermostats and temperature-sensitive switches.
