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As the temperature of a radioactive sample increases the rate of the nuclear decay?
Wiki User
∙ 7y ago
It stays the same. Temperature has no effect on the rate of nuclear decay.
Wiki User
∙ 11y ago
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How much of a 100-g sample of thorium-234 will be unchanged after 48.2 days?
25 gExplanation:Think about what a nuclear half-liferepresents, i.e. the time needed for an initial sample of a radioactive substance to be halved.
What happened to the kinetic energy of the particles in a sample of gas as the temperature of the sample increase?
The average Kinetic energy of the atoms in the sample will increase as the sample is heated.
If a fixed sample of gas increases in temperature it must also do what?
If a fixed volume of gas increases in temperature, it must increase in volume. If the gas is in a closed system, the pressure inside that system increases instead. When the gas increases in volume, it also decreases in pressure, often rising above colder, more dense gas if possible.
When a fixed sample of gas increases in volume what happens to the pressure and temperature?
The frequency of collisions is reduced
Is nuclear fusion used to describe the rate of a radioactive isotopes decay?
No. Nuclear fusion is the process by which 4 hydrogen atoms are fused into a single helium atom, releasing huge amounts of energy. This is the process that powers our sun. Radioactive decay of isotopes is described by the concept of the half life. The half life of an isotope is the time it takes for 1/2 of a sample of that isotope to decay into a daughter product.
If a fixed sample of a gas increases in temperature at a constant pressure its volume does what?
Increases in direct proportion to the increase in temperature (on an absolute scale).
What happens to the thermal energy of a substance as its temperature increases?
When a sample of a substance absorbs thermal energy, its temperature rises.
What is the room temperature of nobelium?
Being very radioactive probably nobelium is hot; but we have not a sufficient sample to test this hypothesis.
How much of a 100-g sample of thorium-234 will be unchanged after 48.2 days?
25 gExplanation:Think about what a nuclear half-liferepresents, i.e. the time needed for an initial sample of a radioactive substance to be halved.
What must be true for radioactive dating to be possible with a certain sample?
The sample must contain radioactive elements.
Is it true that the temperature of a sample of steam increases from 100 to 200. The average kinetic energy of its particles doubles?
False
Can a sample of matter change its composition or state?
For chemical reactions, the elements in a sealed vessel will not change. But, reactions can take place that would tend to take the sample to a state of equilibrium. Or, with heating or cooling the physical state can be changed.Another type of reaction is nuclear decay, in which radioactive substances will spontaneously decay to other radioactive substances, or decay to non-radioactive substances, thus actually changing the elements present.
What does the half life of a radioisotope correspond to?
The length of time required for half of a sample of radioactive material to decay
What is the significance of a half life of a radioisotope?
It tells what fraction of a radioactive sample remains after a certain length of time.
The pressure of a sample of gas at 10.0 C increases from 700 mm Hg to 900 mm Hg What is the new temperature?
39.0
What happened to the kinetic energy of the particles in a sample of gas as the temperature of the sample increase?
The average Kinetic energy of the atoms in the sample will increase as the sample is heated.
If a fixed sample of gas increases in temperature it must also do what?
If a fixed volume of gas increases in temperature, it must increase in volume. If the gas is in a closed system, the pressure inside that system increases instead. When the gas increases in volume, it also decreases in pressure, often rising above colder, more dense gas if possible.
