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Is piston cylinder process is constant pressure process or constan volume process?
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If a process is carried out at constant pressure P and the volume V of the system decreases then V is negative positive and the work w is negative positive zero?
In this case, V would be negative, and work w would be positive.
What is a process column?
A process column is a vertical cylinder in which a reaction takes place. The reaction is commonly one of filtering or selection, as measured by ionic charge; or molecular size and so on. Often an ion-exchange resin is used as the process material. A particular type of process column is the fractionating column, beloved of the petrochemical industry. These are tens of metres high, and rely on the fact that as the pressure reduces up the column, the boiling point of the (liquid) will change. Thus the high b.p material comes off lower down, and lower b.p. come off at higher levels.
What does attrition mean?
The action or process of gradually reducing the strength or effectiveness of someone or something through sustained attack or pressure.
Derivation for workdone in isothermal process?
In thermodynamics, an adiabatic process or an isocaloric process is a process in which no heat is transferred to or from working fluid. The term "adiabatic" literally means an absence of heat transfer; for example, an adiabatic boundary is a boundary that is impermeable to heat transfer and the system is said to be adiabatically (or thermally) insulated. An insulated wall approximates an adiabatic boundary. Another example is the adiabatic flame temperature, which is the temperature that would be achieved by a flame in the absence of heat loss to the surroundings. An adiabatic process which is also reversible is called an isotropic process.Ideal gas:For a simple substance, during an adiabatic process in which the volume increases, the internal energy of the working substance must necessarily decrease. The mathematical equation for an ideal fluid undergoing an adiabatic process is,p.v^( γ )where P is pressure, V is volume, andγ =CP/CV=α +1 / α .CP being the molar specific heat for constant pressure and CV being the molar specific heat for constant volume. α comes from the number of degrees of freedom divided by 2 (3/2 for monotonic gas, 5/2 for diatomic gas). For a monotonic ideal gas, γ = 5 / 3, and for a diatomic gas (such as nitrogen and oxygen, the main components of air) γ = 7 / 5. Note that the above formula is only applicable to classical ideal gases and not Bose-Einstein or Fermi gases.For the derivation of work done in an adiabatic process, please visit the link I added below.
When do you use a diaphragm seal What is the process of measurement and control?
Process measurement sensors are not indestructible. Not even the most rugged device is fully immune to the chemical nature of process media or the kinetic impact associated with fluid composition and movement. Balancing degrees of protection, usually to increase the useful life of the device, with sensor response and accuracy is a frequent challenge in the process measurement and control field. Industrial processes commonly are associated with corrosive or toxic fluids, often at extreme pressure or temperature and containing various levels of solids. Any of these traits can pose substantial risk to process performance and uptime. Operations that process fluids will employ pressure measurement devices to monitor process performance and maintain system safety levels. There are many instances where characteristics of the process and its media are not compatible with pressure measurement devices. Here are some potentially problematic scenarios for pressure measurement instruments: Corrosive media that will prematurely deteriorate the pressure sensing element. Viscous or fibrous media, also those that may crystallize or polymerize, posing a risk of clogging channels, tubes, and orifices of pressure measurement devices. Media temperature that is beyond the rated range for the pressure measurement device has a potential to damage the instrument or cause error in the pressure reading. A measuring point that is remotely located from where a technician may need to observe the reading. Also conceivable, the pressure measurement device needs to be located away from other potentially damaging environmental conditions. The process requirements dictate specific hygienic requirements that are cause for the measurement device to be isolated from the medium. Toxic or otherwise hazardous media that must be contained. Excursions of system pressure may exceed the acceptable range of the instrument, potentially damaging the device. A solution which can provide protection from the items listed above, while still maintaining instrument response and accuracy is a diaphragm seal. Seals are placed between the pressure measurement device and the process media. The space between the diaphragm, which is flexible, and the sensor is filled with a fluid that will hydraulically transfer the pressure condition on the process side of the diaphragm to the sensor. The diaphragm serves as a physical barrier between the potentially damaging media and the instrument. Diaphragm seals are available in a wide variety of configurations to accommodate any media type or connection requirement. Seal selection involves specifying the connections and form factor to properly mate the diaphragm with the instrument and the process, then selecting the diaphragm material that will be compatible with the media. The best way to achieve a positive solution is to share your requirements with a qualified assembler. They can help select the right diaphragm seal and mate it up with a pressure gauge, providing a complete assembly that is ready to be installed in your process.
What is isobaric process?
An isobaric process is a thermodynamic process that occurs at a constant pressure. This means that the system is allowed to exchange heat with its surroundings but the pressure remains the same throughout the process. In an isobaric process, the work done is determined by the change in volume of the system.
What is constant in a polytropic process?
In a polytropic process, the polytropic index "n" is constant. This index dictates the relationship between pressure and volume, and it remains the same throughout the process.
What is name of the thermodynamics process if the pressure is constant the volume increases the heat is lost?
The process is called isothermal expansion. This occurs when a gas expands and cools down while maintaining a constant pressure.
Air expands according to the law pv1.3 a constant inside an enclosed cylinder find its specific heat?
For an adiabatic process, we have the equation PV^1.3 = constant, where P is the pressure and V is the volume. Specific heat at constant pressure (Cp) can be found using the relation Cp - Cv = R, where R is the gas constant. Specific heat at constant volume (Cv) is dependent on the specific gas and temperature range.
Does heat reduce the pressure in a cylinder of an engine?
No, heat does not reduce the pressure in a cylinder of an engine. In fact, heat typically increases pressure by causing gases to expand. The pressure in an engine cylinder is primarily determined by the combustion process and the movement of the piston.
How to calculate final pressure when given initial pressure and initial temp and also final temp and know that it's a constant volume process from initial state?
You can calculate pressure and temperature for a constant volume process using the combined gas law.
Which of the following is true of an isothermal process Temperature is constant W equals Q ΔU equals 0 Pressure is constant?
Temperature is constant during an isothermal process. The work done (W) is equal to the heat added (Q). The change in internal energy (ΔU) is zero for an isothermal process. The pressure can vary during an isothermal process, depending on the specific conditions.
What is Isochoric process?
Isochoric process is a process in which change in pressure and temperature takes place in such a way that the volume of the system remains constant.
What special name is given to a heat change at constant pressure?
A heat change at constant pressure is called enthalpy change, often denoted as ΔH. It represents the change in total heat content of a system during a process occurring at constant pressure.
Which of the four thermal processes describes the pressure volume relationship at a constant temperature?
The isothermal process describes the pressure volume relationship at a constant temperature. In an isothermal process, the temperature remains constant throughout the system while work is done.
What is isochoric?
Isochoric process is a process in which change in pressure and temperature takes place in such a way that the volume of the system remains constant.
Which is constant pressure cycle?
The constant pressure cycle refers to a thermodynamic cycle where the pressure is kept constant during a specific process, such as an isobaric process. This typically occurs in systems like heat exchangers or turbines where the pressure remains constant while other parameters like temperature and volume may change.
