Answer:
Goes from ocean (liquid) to water vapor (gas) to clouds (liquid) to snow (solid) then melts in a river (liquid)
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Answer:
A BEC ( Bose - Einstein condensate ) is a state of matter of a dilute gas of bosons cooled to temperatures very close to absolute zero is called BEC.
Examples - Superconductors and superfluids are the two examples of BEC.
Explanation:
Answer:
the packing efficiency is 52.36%
Explanation:
Given the data in the question;
simple cubic unit cell that contains one atom with a metallic radius of 175 pm;
we know that;
Edge length of Simple cubic (a) is related to radius of atom (r) as follows;
a = 2r
since radius r = 175 pm
we substitute
a = 2 × 175 pm
a = 350 pm
Now we get the volume unit;
Volume of unit cell = a³ = ( 350 pm ) = 42875000 pm³
Next we get Volume of sphere;
Volume of Sphere = πr³
Volume occupied by 1 atom = × π × ( 175 pm )³
= × π × 5359375 pm³
= 22449297.5 pm³
Now, the packing efficiency = ( Volume occupied by 1 atom / Volume of unit cell ) × 100
we substitute;
packing efficiency = ( 22449297.5 pm³ / 42875000 pm³ ) × 100
= 0.523598 × 100
= 52.36%
Therefore, the packing efficiency is 52.36%
<u>Answer:</u>
They follow Einstein's equation, which allows for the conversion of mass to energy is true about nuclear reaction.
<u>Explanation:</u>
The nuclear reactions happen according the Einstein’s equation, i.e., when the mass deficit between the weight of the nucleus as a whole and the individual constituent components occurs, this deficit is converted to energy that is released and used for nuclear reactions.
No mass can never be made or destroyed. So is energy. Energy too has to remain constant; there can be a change in the form, energy can be converted into mass or vice versa but the constancy has to be maintained.
Answer:
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Explanation: