MCQ
Atomic mass is equal to:
- ANumber of electrons of an atom.
- ✓Sum of the numbers of electrons and protons of an atom.
- CSum of the numbers of neutrons and protons of an atom.
- DNone of these.
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$A ( g )+ B ( g ) \rightleftharpoons AB ( g ) \text {. }$
The activation energy of the backward reaction exceeds that of the forward reaction by $2RT$ (in $J mol ^{-1}$ ). If the pre-exponential factor of the forward reaction is $4$ times that of the reverse reaction, the absolute value of $\Delta G ^{\ominus}$ (in $J mol ^{-1}$ ) for the reaction at $300 K$ is. . . . . (Given; $\ln (2)=0.7, RT =2500 J mol ^{-1}$ at $300 K$ and $G$ is the Gibbs energy)
Product obtained in the above reaction is