Which of the following are correct for the given diagram? (A) \( \Delta H_{3}=\Delta H_{1}+\Delt...

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Which of the following are correct for the given diagram?
(A) \( \Delta H_{3}=\Delta H_{1}+\Delta H_{2} \)
(B) \( \Delta H_{1}=0 \)
(C) \( \Delta H_{2}=\left(C_{\text {calorimeter }}+C_{\text {product }}\right) \times\left(T_{1}-T_{2}\right) \)
(D) \( \Delta H_{2}=\left(C_{\text {calorimeter }}+C_{\text {product }}\right) \times\left(T_{2}-T_{1}\right) \)
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