MCQ
Who is called father of modern chemistry ?
- ✓Antoine Lavoisier.
- BGilbert Lewis.
- CGibbs.
- DOtto Hahn.
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| Column $I$ | Column $II$ |
| $(A)$ Freezing of water at $273 K$ and $1 \ atm$ | $(P)$ $q =0$ |
| $(B)$ Expansion of $1 \ mol$ of an ideal gas into a vacuum under isolated conditions | $(Q)$ $w=0$ |
| $(C)$ Mixing of equal volumes of two ideal gases at constant temperature and pressure in an isolated container | $(R)$ $\Delta S _{\text {sy5 }} < 0$ |
| $(D)$ Reversible heating of $H _2( g )$ at $1 \ atm$ from $300 \ K$ to $600 \ K$, followed by reversible cooling to $300 \ K$ at $1 \ atm$ | $(S)$ $\Delta U =0$ |
| $(T)$ $\Delta G =0$ |
${C_{(gr)}} + {O_{2(g)}} \to C{O_{2(g)}}\,\,\,\Delta H = x\,kJ/mol$
${C_{(gr)}} + \frac{1}{2}{O_{2(g)}} \to C{O_{(g)}}\,\,\,\Delta H = y\,kJ/mol$
$C{O_{(g)}} + \frac{1}{2}{O_{2(g)}} \to C{O_2}_{(g)}\,\,\,\Delta H = z\,kJ/mol$