Expansion metals undergo a reversible change when they are heated, causing them to expand and then contract upon cooling. This property is effectively utilized in thermometers, where a metal bulb expands as the temperature rises, pushing a liquid up a calibrated scale. When the temperature drops, the metal contracts, allowing the liquid to return to its original position, providing an accurate reading. This reversible change is crucial for precise temperature measurement in various applications.
No. All processes involving heat transfer are not reversible, since they result in an increase in entropy. Isothermal expansion implies heat transfer to maintain the system at a constant temperature. Normally an expanding gas would cool if there were no heat entering the system. Adiabatic processes involve no heat transfer and are reversible. The temperature can (and usually does) change during an adiabatic process.
Rain is a natural phenomena and is not reversible.
A reversible change is when something can turn back into its original shape for example when ice is melted it turns into a liquid but then you can freeze it into a solid again do the change is reversible because it can change back into its original starter which is the ice in this case. But if you make a cake it is not reversible because all of the mixture has mixed together and it turns into one object this is called a chemical change. Also a reversible change is a physical change! Hope this helped ;)
One example of a non-reversible physical change for water is freezing. When water freezes, it changes from a liquid to a solid state, and this change cannot be easily reversed simply by raising the temperature back to its original state.
isenthalpic expansion is through PRDS or control valve where entropy changes. Whereas expansion through a steam turbine is isentropic one and enthalpy drops. isentropic expansion is more efficient process as compared to isenthalic one.
During reversible adiabatic expansion, the work done by the system is equal to the change in internal energy.
Reversible
Breathing on glass is an example of the reversible change because, the air inside the glass can be breathed in again.
The reversible expansion of metals is utilized in the construction of bimetallic strips, which consist of two different metals fused together. When heated, one metal expands more than the other, causing the strip to bend. This is employed in thermostats to control temperature by breaking and making electrical contacts.
Processes that are reversible are physical changes. An example is the melting of ice.
A reversible change is a change you can make, then put back, however a non-reversible change is a change you can make, then it will be stuck like that
An example of a reversible change is an ice cube meting into water and then changing back to an ice cube again if frozen. Another is chocolate melting when heated and changing back to a solid when cooled.
No. All processes involving heat transfer are not reversible, since they result in an increase in entropy. Isothermal expansion implies heat transfer to maintain the system at a constant temperature. Normally an expanding gas would cool if there were no heat entering the system. Adiabatic processes involve no heat transfer and are reversible. The temperature can (and usually does) change during an adiabatic process.
The expansion of matter upon heating is an example of a thermal expansion, which is the tendency of matter to change in volume, area, and length in response to a change in temperature.
You have to lick the butter then ............... try and melt it down with your bom!
Yes, this change is reversible.
Nearly, a physical change creates a substance and this is reversible. For example, ice-water. Water-steam. These are all reversible. A chemical change is irreversible. For example, baking a cake; you cannot get the original ingredients back again.