| अभिक्रिया | $\Delta H \ (kJ)$ |
|---|---|
| $(i) \ 4NH_{3(g)} + 5O_{2(g)} \to 4NO_{(g)} + 6H_2O_{(l)}$ | $-904$ |
| $(ii) \ 2NO_{(g)} + O_{2(g)} \to 2NO_{2(g)}$ | $-112$ |
| $(iii) \ 3NO_{2(g)} + H_2O_{(l)} \to 2HNO_{3(aq)} + NO_{(g)}$ | $-140$ |
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| सूची-$I$ | सूची-$II$ |
|---|---|
| $(A) \Delta U = W_{ad}$ | $I.$ समतापीय उत्क्रमणीय विस्तार |
| $(B) \Delta U = q - W$ | $II.$ दीवार रुद्धोष्म (adiabatic) है |
| $(C) \Delta U = -q$ | $III.$ ऊष्मा चालक दीवारें |
| $(D) \Delta U = 0$ | $IV.$ विलगित निकाय |
| $V.$ बंद निकाय |
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