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For an open system, energy balance is

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For an open system, energy balance is

(a) U+25B3E = Q + W – U+25B3(H + KE + PE)

(b) U+25B3E = Q + W + U+25B3(H + KE + PE)

(c) U+25B3E = Q + W – U+25B3(H – KE + PE)

(d) None of the mentioned

I got this question during an internship interview.

The query is from Energy Balances without Reaction in portion Energy Balances of Chemical Process Calculation

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The correct choice is (a) U+25B3E = Q + W – U+25B3(H + KE + PE)

To explain: For an open system, U+25B3E = Q + W – U+25B3(H + KE + PE).

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