Given that
Heat (Q) = 700 J ,
Work (W) = 400 J ,
What is the final internal energy of the system (u₂) = ?
given (u₁) = 1200 J
we know that ΔU = Q - W Joules,
(U₂ - 1100) = 700 - 400
U₂ = 300 +1100
= 1400 J
The final internal energy is 1400 J
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