Question

In terms of the δe values, which are the two expressions for the difference in internal energy between state a and state b? check all that apply. check all that apply. δeab=δe3+δe4 δeab=δe2+δe3 δeab=δe1+δe4 δeab=δe1−δe2 δeab=δe1+δe2 δeab=δe3−δe4 δeab=δe1+δe2+δe3+δe4

Answer 1

Complete Question

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Answer:

The expression are

`\Delta E  = \Delta E _1 + \Delta E_2`

and

`\Delta E  = \Delta E _3 + \Delta E_4`

Explanation:

Generally from the diagram the energy change from state A to state B is

`.\  \ \Delta E_2 \ \ \ \ \  \  \ \ \Delta E_2  \\A  \ \ \to \ \ \  C \ \ \ \to \ \ \  B\\`

Also

`.\  \ \Delta E_3 \ \ \ \ \  \  \ \ \Delta E_4  \\A  \ \ \to \ \ \  D \ \ \ \to \ \ \  B\\`

So two expressions for the difference in internal energy between state a and state b are

`\Delta E  = \Delta E _1 + \Delta E_2`

and

`\Delta E  = \Delta E _3 + \Delta E_4`