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How are pressure and volume related to each other?
Pressure and volume are inversely related - when volume decreases, pressure increases, and vice versa. This is described by Boyle's Law, which states that the pressure of a gas is inversely proportional to its volume when temperature is kept constant.
How is the refrigerant cylinder pressure kept above the system pressure when a system is being charged with vapor from a cylinder?
The refrigerant cylinder pressure is kept above the system pressure by regulating the flow of refrigerant from the cylinder into the system. This is typically achieved using a charging hose with a metering device or valve that controls the rate of flow. By adjusting the flow rate, the pressure in the cylinder can be maintained higher than the system pressure during charging.
Which two variables change in boyle's law?
In Boyle's law, pressure and volume are the two variables that change. The relationship between pressure and volume is inverse; as pressure increases, volume decreases, and vice versa, when the temperature is kept constant.
How would pressure change if the area is change the force is kept constant?
If the area decreases, the pressure will increase since pressure is inversely proportional to area when force is constant (Pressure = Force/Area). This means that a smaller area will result in the force being distributed over a smaller area, leading to an increase in pressure.
What effect does raising the temperature of a gas have on its pressure if the volume of the gas and the number of particles are kept constant?
Raising the temperature of a gas will increase its pressure, following the ideal gas law (PV = nRT). As temperature increases, the average kinetic energy of the gas particles also increases, leading to more frequent and forceful collisions with the walls of the container, resulting in higher pressure.
What electrical devices has to be kept at a constant temperature?
furnace, fridge
What is required for good furnace maintenance?
For one to maintain a good furnace, one must: clean the furnace regularly, replace or clean the filter, service the furnace once or twice a year, make sure that the furnace is kept clean and dry to name a few.
Why is it important that blood pressure is kept high?
its not
Which of the following occur as a result of decreasing the heat energy of a gas?
If pressure is kept constant, the volume will decrease.If volume is kept constant, the pressure will decrease.
The grid in a high-vacuum triode is usually kept?
negative
How can people withstand pressure in submarine?
A submarine is kept at, or close to, surface air pressure.
Why horizontal vessel is kept in low pressure?
because horizontal vessels can't kept a high presssure
What was the negative effects of the luger pistol?
A tendency to jam if not kept clean.
What will be the melting point ice if it is kept under high pressure?
The melting point is not changed by pressure. It is still over 32O
What will happen if the Gas is kept at low temperature and high pressure?
At low temperature and high pressure, the VOLUME of the gas will be reduced.
If the temperature of gas in the container decreases what happens to its pressure?
Assuming the volume is kept constant, the pressure will also decrease in this case.
What is supercritical boiler?
The following extract taken from an article by Ingo Paul in Energy Issues No 19 April 1999 published by the World Bank [external link] briefly describes the difference between a subcritical and a supercritical boiler. "Supercritical" is a thermodynamic expression describing the state of a substance where there is no clear distinction between the liquid and the gaseous phase (i.e. they are a homogenous fluid). Water reaches this state at a pressure above 22.1 megapascals (MPa) The "efficiency" of the thermodynamic process of a coal fired power (sic) describes how much of the energy fed into the cycle is converted into electrical energy. The greater the output of electrical energy for a given amount of energy input, the higher the efficiency. If the energy input to the cycle is kept constant, the output can be increased by selecting elevated pressures and temperatures for the water-steam cycle. Up to an operating pressure of around 19 MPa in the evaporator part of the boiler, the cycle is sub-critical. This means, that there is a non-homogeneous mixture of water and steam in the evaporator part of the boiler. In this case a drum-type boiler is used because the steam needs to be separated from water in the drum of the boiler before it is superheated and led into the turbine. Above an operating pressure of 22.1 MPa in the evaporator part of the boiler, the cycle is supercritical. The cycle medium is a single phase fluid with homogeneous properties and there is no need to separate steam from water in a drum. Once-through boilers are therefore used in supercritical cycles. www.whizkris.com
