Can a non-metal replace a metal in a single replacement reaction? If yes, is a non-metal always not able to replace a metal in a
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Answer:
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Explanation:
(a) It is given that the gas is ideal. Formula for change in entropy of the gas according to the first law of thermodynamics is as follows.
For isothermal process, at constant temperature.
So,
or, dQ = dW = 730 J
Now, according to the second law of thermodynamics the entropy change is as follows.
=
= 2.490 J/K
Therefore, the entropy change of the gas is 2.490 J/K.
(b) In the given process, at constant temperature the gas will be compressed slowly because then kinetic energy of the gas molecules will also be constant. The volume decreases so that the movement of molecules increases as a result, entropy of molecules will also increase.
This means that
Half-life can be given as the time required by the substance to reduce to half of its original concentration. The original mass of Uranium was 11.2 grams.
<h3>What is the expression of half-life?</h3>
The half-life for the reaction can be expressed as;
Where the final mass of the product is,
The time for the reduction is given as,
The half-life of the compound is given as,
The original concentration () of the Uranium is given as,
The original mass of uranium-232 has been 11.2 grams.
Learn more about half-life, here:
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