MCQ
In ${N_2}$ molecule, the atoms are bonded by
- ✓One $\sigma$ , Two $\pi$
- BOne $\sigma$, One $\pi$
- CTwo $\sigma$, One $\pi$
- DThree $\sigma$ bonds

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$ H_2(g) + Cl_2(g) \to 2HCl(g), \Delta H^o = -185\, kJ$
What is $\Delta U^o$ for this reaction? .....$kJ$

$n$ $l$ $m$