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taurus [48]
3 years ago
14

Why doesnt it exist?

Chemistry
1 answer:
belka [17]3 years ago
8 0

Answer:

He2 molecule contains 4 electrons. Each atom gives 2 electrons in 1s orbitals. This way 2 (1s) orbitals combine to give 2 molecular orbitals viz. ... This indicates that there is no bond formation between 2 HE atoms and hence the He2 molecule does not exist.

Explanation:

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ΔU for a van der Waals gas increases by 475 J in an expansion process, and the magnitude of w is 93.0 J.
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Complete question:

ΔU for a van der Waals gas increases by 475 J in an expansion process, and the magnitude of w is 93.0 J. calculate the magnitude of q for the process.

Answer:

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Explanation:

Given;

change in internal energy of the gas, ΔU = 475 J

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During gas expansion process, heat is added to the gas.

Apply the first law of thermodynamic to determine the magnitude of heat added to the gas.

ΔU = q - w

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q = 475 J  +  93 J

q = 568 J

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