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What is the difference between adiabatic and isentropic processes in thermodynamics?
In thermodynamics, adiabatic processes do not involve heat transfer, while isentropic processes are reversible and adiabatic.
What is a quasi-static process and how does it differ from other types of processes in thermodynamics?
A quasi-static process in thermodynamics is a slow and gradual change in a system's state, where the system remains in equilibrium at all times. This process differs from other types of processes, such as adiabatic or isothermal processes, which may involve rapid changes or heat exchange with the surroundings. Quasi-static processes allow for accurate measurements and analysis of thermodynamic properties.
Why an adiabatic curve steeper than an iosthermal?
In isothermal the temperature is constant whereas in adiabatic the temperature falls or rises rapidly.Consider the case for expansion where in adiabatic the temperature drops. If you consider PV/T=constant then for same pressure we can show that as temp decreases the volume also decreases. During expansion for isothermal the temp does not change so volume is higher than adiabatic. Example: Isothermal P=8 Pa, V=x , T=2K Adiabatic P=8 Pa, V=y, T=1K (as it drops) Using PV/T=constant we can find that y is less than x.
What are the characteristics and significance of isothermal curves in thermodynamics?
Isothermal curves in thermodynamics represent processes that occur at a constant temperature. These curves are significant because they help us understand how heat and work are exchanged in a system without a change in temperature. By studying isothermal curves, we can analyze the behavior of gases and other substances under specific conditions, leading to a better understanding of thermodynamic processes.
What does the word adiabatic mean?
Adiabatic refers to a process in thermodynamics where there is no heat exchange with the surroundings. This means that the change in internal energy of the system is solely due to work being done on or by the system. Adiabatic processes are often rapid and can result in changes in temperature or pressure.
What is the difference between adiabatic and isentropic processes in thermodynamics?
In thermodynamics, adiabatic processes do not involve heat transfer, while isentropic processes are reversible and adiabatic.
Why carnot cycle is called a two adiabatic and two isothermal process?
Adiabatic means there's no heat transference during the process; Isothermal means the process occurs at constant temperature. The compression and expansion processes are adiabatic, whereas the heat transfer from the hot reservoir and to the cold reservoir are isothermal. Those are the two adiabatic and isothermal processes.
What are the key differences between adiabatic and isothermal processes on a PV diagram?
In an adiabatic process, there is no heat exchange with the surroundings, leading to steeper slopes on a PV diagram compared to an isothermal process where temperature remains constant. This results in different shapes and behaviors on the PV diagram for each process.
What is ratio of adiabatic elasticity isothermal elasticity?
The ratio of adiabatic elasticity to isothermal elasticity is given by the specific heat ratio (γ), which is defined as the ratio of the specific heat at constant pressure (Cp) to the specific heat at constant volume (Cv). For an ideal gas, γ is typically greater than 1, indicating that adiabatic processes involve greater changes in pressure and volume compared to isothermal processes. This relationship highlights how the temperature changes under adiabatic conditions differ from those under isothermal conditions.
What are the four processes that make up the carnot cycle?
The Carnot cycle consists of four key processes: isothermal expansion, isothermal compression, adiabatic expansion, and adiabatic compression. In the isothermal expansion phase, the working substance absorbs heat from a hot reservoir while expanding, doing work on the surroundings. During isothermal compression, it releases heat to a cold reservoir while being compressed. The adiabatic processes involve the working substance expanding and compressing without heat exchange, allowing the temperature to change due to work done on or by the system.
What are thermodynamic processes?
It means that the proces is somewhere between an isothermal and a adiabatic proces You have some heat transfer, but not all of it.
What are the thermodynamic processes?
It means that the proces is somewhere between an isothermal and a adiabatic proces You have some heat transfer, but not all of it.
Does a parcel of air that rises undergo isothermal expansion?
No, a parcel of air that rises undergoes adiabatic expansion, not isothermal expansion. This is because adiabatic processes involve changes in temperature due to the parcel's expansion or compression without any heat exchange with the surroundings, while isothermal processes involve constant temperature.
What is a quasi-static process and how does it differ from other types of processes in thermodynamics?
A quasi-static process in thermodynamics is a slow and gradual change in a system's state, where the system remains in equilibrium at all times. This process differs from other types of processes, such as adiabatic or isothermal processes, which may involve rapid changes or heat exchange with the surroundings. Quasi-static processes allow for accurate measurements and analysis of thermodynamic properties.
Why an adiabatic curve steeper than an iosthermal?
In isothermal the temperature is constant whereas in adiabatic the temperature falls or rises rapidly.Consider the case for expansion where in adiabatic the temperature drops. If you consider PV/T=constant then for same pressure we can show that as temp decreases the volume also decreases. During expansion for isothermal the temp does not change so volume is higher than adiabatic. Example: Isothermal P=8 Pa, V=x , T=2K Adiabatic P=8 Pa, V=y, T=1K (as it drops) Using PV/T=constant we can find that y is less than x.
What is the significance of adiabatic processes in thermodynamics, particularly when the heat transfer, represented by q, is equal to zero?
In thermodynamics, adiabatic processes are important because they involve no heat transfer (q0). This means that the system does not exchange heat with its surroundings, leading to changes in temperature and pressure. Adiabatic processes are key in understanding how energy is conserved and how systems behave when isolated from external heat sources.
What are the characteristics and significance of isothermal curves in thermodynamics?
Isothermal curves in thermodynamics represent processes that occur at a constant temperature. These curves are significant because they help us understand how heat and work are exchanged in a system without a change in temperature. By studying isothermal curves, we can analyze the behavior of gases and other substances under specific conditions, leading to a better understanding of thermodynamic processes.
