Study the diagram of radioactive decay. Which option identifies what the arrows in the diagram represent? atoms and elements ele
2 answers:
Energy and particles are produced from the radioactive decay.
By studying the diagram of radioactive decay we identifies two materials i.e. energy and particles which are the two products emitting from the radioactive source.
From radioactive decay, radiation is emitting in the form of alpha, beta and gamma radiation as well as the production of particle that is stable without radiation so we can conclude that energy and particles are the two products produced from the process of radioactive decay.
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The arrows in the image represent energy and particles.
Radioactive decay involves the disintegration of a nucleus to yield smaller nuclei with the emission of energy. The process may occur spontaneously for large nuclei or it may be induced by bombardment with other particles.
We know that radioactive decay leads to;
- Formation of new nucleus/nuclei
- Emission of energy
- Emission of particles
Therefore, the arrows in the image represent energy and particles.
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Answer:
The heat absorbed by the sample of water is 3,294.9 J
Explanation:
Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.
The sensible heat of a body is the amount of heat received or transferred by a body when it undergoes a temperature variation (Δt) without there being a change of physical state (solid, liquid or gaseous). Its mathematical expression is:
Q = c * m * ΔT
Where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.
In this case:
- Q=?
- m= 45 g
- c= 4.184
- ΔT= Tfinal - Tinitial= 38.5 C - 21 C= 17.5 C
Replacing:
Q= 4.184 * 45 g* 17.5 C
Solving:
Q=3,294.9 J
<u><em>The heat absorbed by the sample of water is 3,294.9 J</em></u>
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