- #1
influx
- 164
- 2
In the mark scheme they have done
P = (8×1013) × 5.3 ×106(1.6 × 10-19) = 67.8 W
I don't understand why they have done this?
How does Activity x Energy= Power ?
In summary, Polonium-210 is a highly unstable and radioactive isotope that releases energy through radioactive decay. Its energy release rate is measured in curies or becquerels, and is affected by factors such as the amount present, half-life, and environmental conditions. Exposure to Polonium-210 can be dangerous and potentially lethal, and it is used in various scientific research and technologies such as nuclear batteries and spacecraft power systems.
In the mark scheme they have done
P = (8×1013) × 5.3 ×106(1.6 × 10-19) = 67.8 W
I don't understand why they have done this?
How does Activity x Energy= Power ?
- #2
AppleBite
- 54
- 0
"Activity" (in Bq) is the number of nuclei that decay per second.
"Energy" is defined as the energy per nucleus released. As defined in the answer here, the units after the conversion will be in joules (MeV * 1.6 × 10-19 = Joules).
Hence,
(number of nuclei / second)*(joules / number of nuclei) = (joules / second) = watts
Make sense?
"Energy" is defined as the energy per nucleus released. As defined in the answer here, the units after the conversion will be in joules (MeV * 1.6 × 10-19 = Joules).
Hence,
(number of nuclei / second)*(joules / number of nuclei) = (joules / second) = watts
Make sense?
Related to Rate of energy release by Polonium-210
1. What is Polonium-210 and how is it related to energy release?
Polonium-210 is a radioactive isotope of polonium, a chemical element with the symbol Po and atomic number 84. It is a highly unstable and radioactive material that undergoes radioactive decay, releasing energy in the form of alpha particles.
2. How is the rate of energy release by Polonium-210 measured?
The rate of energy release by Polonium-210 is measured in units of curies (Ci) or becquerels (Bq). One curie is equal to 3.7 x 10^10 disintegrations per second, and one becquerel is equal to one disintegration per second.
3. What factors affect the rate of energy release by Polonium-210?
The rate of energy release by Polonium-210 is affected by factors such as the amount of Polonium-210 present, the half-life of the isotope, and environmental conditions such as temperature and pressure.
4. What are the potential dangers of exposure to Polonium-210?
Exposure to Polonium-210 can be dangerous as it releases alpha particles, which can cause damage to cells and tissues in the body. It has a high toxicity and can be lethal if ingested or inhaled in large amounts. Long-term exposure can also increase the risk of developing cancer.
5. How is Polonium-210 used in scientific research and technology?
Polonium-210 is used in various scientific research and technologies, including nuclear batteries, spacecraft power systems, and as a heat source in thermoelectric generators. It is also used in the production of neutron initiators for nuclear weapons and in the testing of materials for their resistance to radiation.
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