5. Thermodynamics and thermochemistry — Chemistry STD 11 Science — Question

$CH_4(g) +2O_2(g)  \rightarrow  CO_2(g)+2H_2O(l)\,;$  $\Delta H= -890 \,kJ$

$CO_2(g)  \rightarrow  C($graphite$) + O_2(g) \,;$   $\Delta H= 393 \,kJ$

$2H_2O(l)  \rightarrow  2H_2(g) + O_2(g) \,;$  $\Delta H= 571 \,kJ$

$2H_2(g) \rightarrow  4H(g)\, ;$  $\Delta H= 871\, kJ$

$C($graphite$)  \rightarrow  C(g)\, ;$  $\Delta H= 716\, kJ$

${H_2}O + {H_2}PO^-_4 \rightleftharpoons {H_3}{O^ + } + HPO_4^{ - 2}$

Select out the group of acidic species lying on the right side of the equilibrium

Sucrose $+$ $H _{2} O \rightleftharpoons$ Glucose $+$ Fructose

If the equilibrium constant $\left( K _{c}\right)$ is $2 \times 10^{13}$ at $300\, K$, the value of $\Delta_{ r } G^{\Theta}$ at the same temperature will be:

Choose the correct answer from the options given below.