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First law of thermodynamics is mathematically stated as dQ = dU - dW dW = dQ - dU dQ = dU + dW dU

First law of thermodynamics is mathematically stated as dQ = dU - dW dW = dQ - dU dQ = dU + dW dU = dQ + dW First law of thermodynamics deals with * irreversible processes only none of these reversible process only direction of energy transfer

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