Asked by Andy Blackwell Uncategorized
Is availability of a system different in different surroundings?
We need you to answer this question!
If you know the answer to this question, please register to join our limited beta program and start the conversation right now!
What is the availability of different careers for the up coming generation?
Asked in Definitions
Why is it important to define the system and the surroundings?
You can define a system as part of the universe on which you focus your attention. The surroundings include everything else in the universe. In thermochemical experiments, you can consider the region in the immediate vicinity of the system as the surroundings. A major goal of thermochemistry is to examine the flow of heat between the system and its surroundings.
Asked in Human Anatomy and Physiology
What is the difference between isolated system and non flow adiabatic system?
Asked in Computer Programming, Computer Security
Would loss of availability be an issue attributed to worms?
Asked in Science
What is an open system in enviromental science?
Asked in Energy
What is it called when a substance releases energy to its surroundings?
There are two ways that a substance ( called the System ) may release energy to the Surroundings : ( 1 ) Heat may be released by heat transfer from the System to the Surroundings. Heat transfer from the System to the Surroundings requires the System temperature to exceed the temperature of the Surroundings and the presence of one or more heat transfer modes ( conduction, convection, and/or radiation. ( 2 ) Work done by the System of on the Surroundings corresponding to a force moving through a distance, such as when the substance expands. Substance confined to a cylinder with a piston may expand, doing work on the Surroundings.
You say all systems try to go to their stabler state and the Entropy of Universe is increasing how do you justify both the statements?
The state of maximum entropy of a system is the state when all the energy available to a system to do work is dissipated and is evened out with that of the surroundings. Therefore, the ability to do work relates to the difference in energy levels between a system and its surroundings. A system will carry on working for as long as there is energy difference between it and its surroundings. When the energy of a system and its surroundings evens out, the system ceases to function. All functional systems try, but fail to reach that equilibrium. The Universe as a system is no different. However, the energy which causes the universe to expand -- termed dark energy, which source remains unknown, cause the Universe to do work on its surroundings. Therefore, as a system, the Universe must receive or must have received its energy from its surroundings.
A system receives 419 kJ of heat from its surroundings and does 389 KJ of work on the surroundings What is the change in its internal energy?
Asked in Investing and Financial Markets, Physics
Does a closed system exchange energy with the outside?
When do you say that the work done is positive or negative?
Asked in Operating Systems
What are the required levels of integrity and availability for a MAC I system?
Asked in Science
In science terms what is a closed sysytem?
A closed system is a system that can exchange energy (heat and work)with its surroundings, but can not exchange matter with its surrounding. A greenhouse to some extent can be thought of as a closed system exchanging heat with its surroundings. In general, a system is the part of the universe under consideration. Systems can be isolated, closed, or opened. An isolated system can not exchange energy, and can not exchange matter with its surroundings. In contrast, an opened system can exchange both energy and matter with its surroundings.
Asked in Operating Systems
What are the required levels of integrity and availability for a MAC II system?
What are the required levels of integrity and availability for a MAC III system?
Is flying bird open system or closed system or isolated system according to thermodynamics?
The bird will be best represented as an open system if you include the respiration of the bird and the feathers it drops occasionally. If you neglect those factors you could represent it as a closed system. It will NOT be an isolated system since it does work on its surroundings and its surroundings do work on it - along with some amount of heat transfer from the bird to its surroundings.
Asked in Climatology and Climate Changes
An object that is warmer than its surroundings will?
Tell about system related to thermodynamics?
In thermodynamics, a system is that part of the universe which is under experimental study or observation. The surroundings constitute everything other than system. That is The universe = The system + The surroundings But practically surroundings of a system is the neighborhood of the system which can interact with the system. Types of systems: 1. Open System An open system can exchange both energy and matter with the surroundings. Eg: Hot water kept open in cup. Here both matter (steam) and energy (heat) is exchanged with the surroundings by the system. 2. Closed System A closed system can exchange energy but not matter with the surroundings. Eg: Hot water kept closed in a cup. Exchange of only heat takes place. 3. Isolated System In an isolated system, exchange of matter as well as energy is not possible. Eg: Hot water kept in a thermos flask. Exchange of steam as well as heat does not takes place.
Asked in Chemistry
In describing a chemical reaction what is meant by the system the surroundings?
What the system means in thermodynamics an explain how the system is related to the surroundings and the universe?
If a reaction (or let's just say an object(the system)) is exothermic, it releases heat(exo means exit) into the surroundings. Because the heat leaves the system, the temperature of the object decreases and the surrounding get hotter. Conversely, if a system (an object or reaction) is endothermic, the object absorbs heat, increasing its own temperature and taking in heat from the surroundings, making the surroundings drop in temperature. Also, the energy of the universe is constant, but the entropy (measure of chaos in the world) is increasing. This heat we spoke of, lost or gained, is energy in the form of heat. However, conservation of energy still holds true because the heat isn't completely lost or added, but rather just transferred to different systems and surroundings.