Answer:
D. The magma is heated and becomes less dense by the core moving it toward the crust.
Explanation:
Closer to the core of the earth is much hotter than near the crust so as the Lava heats up its particles move faster and father apart making it less dense, as the Lava from near the crust cools down it begins to get dense and sinks as the hot magma starts to move up.
The shortest wavelength in the paschen series= m.
<h3>How do we calculate the shortest wavelength in the paschen series?</h3>
Emission lines for hydrogen occur when electrons drop from some energy level to a lower energy level. To calculate the shortest wavelength in the paschen series we are using the formula,
Here, we are given,
= Rydberg constant=
= The lower energy level quantum number.=3 (for the paschen series).
n= The quantum number of whichever state the transitions occur from = (for this case of the paschen series).
We have to find the wavelength associated with the photon emitted = m.
Now we substitute the known values in the above equation, we can find that,
Or,
Or,
Or, m
From the above calculation we can conclude that the shortest wavelength in the paschen series is m
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The standard gibbs free energy of formation of <u>i2 (s)</u> is zero.
<h3 /><h3>Definition of gibbs free energy</h3>
The maximum amount of work that can be accomplished by a thermodynamically closed system at constant temperature and pressure can be calculated using the Gibbs free energy, a thermodynamic potential. Furthermore, it offers a prerequisite for any processes, like chemical reactions, that might take place in such circumstances.
The Gibbs free energy change (measured in joules in SI) is the maximum non-expansion work that can be extracted from a closed system (one that can exchange heat & work with its surroundings but not matter) at fixed temperature & pressure. Only a completely reversible mechanism is able to reach this maximum.
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