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Nuclear Energy
Nuclear energy covers technology of reactors, different types of reactors, their history and development, exploitation in different countries, operating experiences, problems of nuclear waste.
6,180 Questions
When U-235 undergoes fission, it splits into two smaller nuclei (such as Barium and Krypton), along with several neutrons and a large amount of energy in the form of gamma rays and kinetic energy. This process releases a significant amount of energy compared to other nuclear reactions.
The Age.
Carbon-14 is a radio-active isotope, with a very long half-life.
It is from knowing the time length of the half-life, that the age an ancient/old object can be assessed.
C-14 isotope exists in everything , including humans. However, its concentration is so low as to do no radio-active damage.
How is the sun's energy stored in coal and other fossil fuels?
The sun's energy is stored in coal and other fossil fuels through a process called photosynthesis. During photosynthesis, plants capture sunlight and convert it into chemical energy through the synthesis of glucose. Over millions of years, this stored energy is preserved in the form of carbon-rich compounds as plants and other organic matter decompose and are compressed underground, forming coal and other fossil fuels. When these fuels are burned, the stored energy is released as heat and light.
Why are power stations situated far from consumers?
Power stations are typically located far from consumers to take advantage of factors such as proximity to fuel sources (e.g., coal mines, hydroelectric sites) and environmental considerations. It allows for efficient transmission of electricity over long distances, reducing energy losses during transport. Additionally, siting power stations away from densely populated areas helps mitigate potential safety and environmental risks.
How nuclear energy transformed to thermal energy?
In a nuclear power plant, nuclear energy is used to heat water, turning it into high-pressure steam. This steam then spins turbines connected to generators, producing electricity. The thermal energy released during the nuclear reactions is essentially converted into mechanical energy and finally into electrical energy.
How many houses can 1 gram of uranium power?
It is difficult to provide an exact number as it depends on various factors such as the energy efficiency of the houses, the configuration of the power plant, and the specific type of uranium used. Generally, 1 gram of uranium can produce a large amount of energy, enough to power several thousands of houses for a short period of time.
How much electricity does one steam turbine make in a sec?
The amount of electricity generated by a steam turbine in one second depends on several factors, including the size and efficiency of the turbine, the pressure and temperature of the steam, and the overall power output of the turbine. On average, a large steam turbine can produce anywhere from 1 to 5 megawatts of electricity per second. However, it is important to note that this is a general estimate and actual output can vary significantly based on specific operating conditions and design parameters.
When a rubber band is stretched it has what kind of energy?
Potential energy is converted into kinetic energy.
Why are scientists always trying to find tools to improve man's sense?
TO find support for their hypotheses
What is the nuclear process that is taking place IN the sun?
Well, friend, the sun's nuclear process is called nuclear fusion. It's like a beautiful dance where hydrogen atoms come together to form helium, releasing a lot of energy in the process. This energy is what warms us, gives us light, and makes life on Earth possible. Just imagine the sun as a big, glowing artist painting the sky with its light and warmth.
Are stars hot enough to sustain nuclear fusion reactions?
Well, friend, isn't it amazing how stars are like a beautiful dance of heat and light? They sure are hot enough for nuclear fusion reactions to sustain that lovely glow we see shining in the night sky. Those stars just have a way of harmoniously creating energy from within themselves to brighten up the universe.
What are the uses of the nuclear reaction?
Nuclear fission is generally used to liberate energy that can be harnessed for commercial and military purposes. They are also used to generate specific isotopes of elements.
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A commercial nuclear fission reactor is used to generate electricity in a controlled fission reaction that heats water into steam, and uses the steam to drive turbines, which in turn drive generators, and creates electricity. France is the largest producer of nuclear power (proportionately), with over 75% of its electricity nuclear generated.
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The same power generation principle is used on board some military vessels that use nuclear power plants to generate the energy needed to drive the ships' propulsion systems. Nuclear powered ships can travel over very long distances and for great durations without requiring refueling.
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Some nuclear reactors' principle purpose is to generate specific isotopes of material. The Chalk River fission reactor in Ontario, Canada, for example, generates over 80% of the world's supply of Technetium 99m, which is used worldwide as a radioactive dye in medical imaging.
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Nuclear fission reactions can also be used as thermonuclear bombs, such as the two that the USA detonated in Hiroshima and Nagasaki, Japan, in 1945. Such fission reactions are deliberately uncontrolled, hence they release all their energy in a fraction of a second, thereby creating an explosion of cataclysmic proportions.
Power source for generating electricity .
Fission is the act of an atom decaying into smaller, more stable atoms. The decay process results in two or more new atoms. When the masses of the new atoms are added up, they do not equal the mass of the original atom. This is because the decay process releases radiation in the form of gamma rays, beta particles, and light. This energy release can be used in a productive manner. For example, in nuclear power reactors, the fissile material's rate of decay can be controlled. This can create a regulated amount of heat. This heat can be used to warm water. The warmed water can be used to turn a steam turbine, which will generate electricity.
How does life on earth benefit from the fusion reactions occurring in the sun?
Life on Earth benefits from the fusion reactions occurring in the sun by providing the energy that sustains all living organisms through photosynthesis. The sun's fusion reactions also help regulate Earth's climate by providing warmth and driving weather patterns that are essential for maintaining a habitable environment.
