The correct answer to this question is C.
However, the use of mercury manometers/McLeod gauges is discouraged due to the toxic nature of mercury and safety issues involving the storage, use, and replenishing of mercury-containing devices. Consider using electronic and mechanical gauges that offer continuous and convenient vacuum level monitoring. Operate vacuum pumps only in places with good ventilation.
Due to the heat generated by operating pumps, do not store volatile, corrosive, unstable, or flammable substances near them. Suctioning is an important part of daily patient care and in many cases can be a potentially lifesaving procedure. A thorough understanding of the physics involved in creating suction, the factors affecting flow rate, and the clinical applications of negative pressure will make the procedure more effective and as safe as possible.
Gas is in a stable state at room temperature, whereas a vapor is a substance which is in a gaseous and liquid equilibrium at room temperature, at a specified pressure. Gas can also involve a single element of matter with its own unique physical and chemical properties.
Vapor is the gaseous state of an element. Vapor particles are a single element and may have a fixed shape. Gas particles do not have a fixed form and are a collection of atoms, ions, electrons, and molecules. However, both gas and vapor particles are in random motion, colliding with each other or the walls of the encompassing vessel when observed under a microscope.
No! It is not necessary that all gases are insulators. Although, it’s all true that most gases are bad conductors of electricity and only a small number of gases can conduct electricity.
Gases conduct electricity only when we subject them to lower pressure and higher voltage. Gases are very poor conductors of electricity at normal atmospheric pressure due to the deficiency of free electrons to carry current across. But, we can produce free electrons in the gaseous state by applying the above-mentioned ways.
Low Pressure increases the interatomic distances and the applied higher voltage excites the particles which lead to more interatomic collisions increasing the K.E. of the particles which ionizes the atoms.
Runouts from horizontal mains shall be taken off above below or at the centerline of the pipe
NGV is known to mean Natural Gas Vehicle. LPG is known as Liquid Petroleum Gas. The NGV tank usually contains natural gas and it is expected to be heavier. It is expected to be thicker too because the pressure inside the tank is also stronger because this is made out of gas. LPG tanks are not too heavy but it does not mean that they are not dangerous when they are not handled properly.
These two types of gas tanks should be handled correctly to ensure that no accidents will occur while they are being transported from one place to another. The LPG is normally used by people who still have gas ranges at home. NGV is used as an alternative type of vehicle from the usual vehicles that we have.
Everything in our environment, including man himself is made up of what we call matter. Matter is popularly defined as anything that has mass and occupies space. There are three different forms or states of matter, which are solids, liquids, and gases, whose characteristics depend on the forces of attraction between their molecules. There are four major points whereby we can differentiate between gases and liquids at the highest basic level, which are shape, hardness, volume and the capacity to flow.
The force of attractions between the molecules of a liquid is less than that of solid though, but the force of attraction is less than that of gas. Thus, this also implies that gases have the weakest form of attractions among the three states of matters. Though this two have no definite shape, as they only take the shape of the container in which they are contained, liquids have a definite volume, but gasses do not. Also, gases can be more easily compressed than liquids.
The answer to this question is letter B. All three flasks are measured 1 liter and are placed in the same room making them have the same temperature too. All 3 flasks have also the same number of molecules as they contain the same element (Nitrogen) and have the equal volume as well.
This is a need for solving their mass by using the Avogadro’s Law. Following the Avogadro’s Law, Flask A that has the NH3 gases is 17 g/mol, Flask B with NO2 is 46 g/mol and Flask 3 or with the N2 gas is equal to 28 g/mol. Based on the following answers, Nitrogen Dioxide has the largest number of molecules.
You can actually get the same information from the ABG and the VBG. The only difference is from where the information can be taken. The ABG blood sample is normally used in order to check the current metabolic environment, the oxygenation, and the ventilation status of the blood.
The VBG measures the level of acidity that can be found in the blood. These two may be a bit confusing and it should also be remembered that the venous blood is also going to be darker but you can get the different samples depending on what would need to be measured. For example, if there is a need to measure oxygen, the ABG will probably be the better option.
Gas and Diesel are both extractions of crude oil. Both are used for a lot of things. They are used as engine fuel, and they can be used in generating power, and also, they are used for both industrial and domestic purpose. However, there are some differences between Gas and Diesel.
Chemically, the structural formula for gases is quite different from the structural formula for Diesel. Gases are pure size hydrocarbons. They are mostly the few first members of hydrocarbons series. Diesel, on the other hand, is a high carbon organic compound. They are found as the homologous series is projecting forward.
Due to the nature of Diesel and its compositions, it takes a while for it to be burned entirely unlike gas. Spark plugs are needed in cars with gasoline engines to provide power for the car, while, cars with diesel engines do not need spark plugs.
The correct answer to this question is Nitrogen. It is the most abundant gas because it is essential to life on Earth. Nitrogen is found in all proteins and all living systems. The compounds of Nitrogen are also found in food, organic materials, poisons, and fertilizers.
While Nitrogen is essential to life, it can also be very harmful to the environment. Physician and chemist Daniel Rutherford discovered it in 1772. The atomic symbol for Nitrogen is N, and its atomic number is 7. As a gas, Nitrogen has no color and has no odor.