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For a reaction, A(g) → A( $\small \l$ ); $\mathrm{\Delta H = -3RT}$ . The correct statement for the reaction is :
Option: 1 $|\Delta \mathrm{H}|<|\Delta \mathrm{U}|$
Option: 2 $\Delta H= \Delta U= 0$
Option: 3 $|\Delta \mathrm{H}|>|\Delta \mathrm{U}|$

Option: 4 $|\Delta \mathrm{H}|=|\Delta \mathrm{U}|$

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