One reaction used to produce small quantities of pure $H_2$ is $\mathrm { CH } _ { 3 } \mathrm { OH } ( g ) \rightleftharpoons \mathrm { CO } ( g ) + 2 \mathrm { H } _ { 2 } ( g )$ Assuming that these values are relatively independent of temperature, calculate $\Delta G ^ { \circ }$ at $28 ^ { \circ } \mathrm { C } , 128 ^ { \circ } \mathrm { C } ,$ and $228 ^ { \circ } \mathrm { C }$

One reaction used to produce small quantities of pure $H_2$ is $\mathrm { CH } _ { 3 } \mathrm { OH } ( g ) \rightleftharpoons \mathrm { CO } ( g ) + 2 \mathrm { H } _ { 2 } ( g )$ What is the significance of the different values of $\Delta G ^ { \circ } ?$

One reaction used to produce small quantities of pure $\mathrm{H}_2$ is

$$\mathrm{CH}_3 \mathrm{OH}(g) \rightleftharpoons \mathrm{CO}(g)+2 \mathrm{H}_2(g)$$

(c) What is the significance of the different values of $\Delta G^{\circ}$

For the gaseous reaction of xenon and fluorine to form xenon hexafluoride: Calculate $\Delta S ^ { \circ }$ at 298 K $\left( \Delta \mathrm { H } ^ { \circ } = ? 402 \mathrm { k } / \mathrm { mol } \text { and } \Delta \mathrm { G } ^ { \circ } = ? 280 . \mathrm { k } / \mathrm { mol } \right)$, (b)

One reaction used to produce small quantities of pure $\mathrm{H}_2$ is

$$\mathrm{CH}_3 \mathrm{OH}(g) \rightleftharpoons \mathrm{CO}(g)+2 \mathrm{H}_2(g)$$

(b) Assuming that these values are relatively independent of temperature, calculate $\Delta G^{\circ}$ at $28^{\circ} \mathrm{C}, 128^{\circ} \mathrm{C}$, and $228^{\circ} \mathrm{C}$.

Replace each question mark with the correct information:

$$\begin{matrix} \text{ } & \ {\Delta \mathrm { Srxn }} & \ {\Delta \mathrm { Hrxn }} & \ {\Delta \mathrm { Grxn }} & \text{Comment}\\ \text{(a)} & \text{ +} & \text{ -} & \text{ -} & \text{ ?}\\ \text{(b)} & \text{ ?} & \text{0} & \text{ -} & \text{Spontaneous}\\ \text{(c)} & \text{ -} & \text{ +} & \text{ ?} & \text{Not Spontaneous}\\ \text{(d)} & \text{0} & \text{ ?} & \text{ -} & \text{Spontaneous}\\ \text{(e)} & \text{ ?} & \text{0} & \text{ +} & \text{ ?}\\ \text{(f)} & \text{ +} & \text{ +} & \text{ ?} & \ {\mathrm { T } \Delta \mathrm { S } > \Delta \mathrm { H }}\\ \end{matrix}$$

For each reaction, predict the sign and find the value of $\Delta S ^ { \circ } :$ $3 \mathrm { NO } ( g ) \longrightarrow \mathrm { N } _ { 2 } \mathrm { O } ( g ) + \mathrm { NO } _ { 2 } ( g )$

Replace each question mark with the correct information:

$$\begin{matrix} \text{ } & \ {\Delta \mathrm { Srxn }} & \ {\Delta \mathrm { Hrxn }} & \ {\Delta \mathrm { Grxn }} & \text{Comment}\\ \text{(a)} & \text{ +} & \text{ -} & \text{ -} & \text{ ?}\\ \text{(b)} & \text{ ?} & \text{0} & \text{ -} & \text{Spontaneous}\\ \text{(c)} & \text{ -} & \text{ +} & \text{ ?} & \text{Not Spontaneous}\\ \text{(d)} & \text{0} & \text{ ?} & \text{ -} & \text{Spontaneous}\\ \text{(e)} & \text{ ?} & \text{0} & \text{ +} & \text{ ?}\\ \text{(f)} & \text{ +} & \text{ +} & \text{ ?} & \ {\mathrm { T } \Delta \mathrm { S } > \Delta \mathrm { H }}\\ \end{matrix}$$

Replace each question mark with the correct information:

$$\begin{matrix} \text{ } & \ {\Delta \mathrm { Srxn }} & \ {\Delta \mathrm { Hrxn }} & \ {\Delta \mathrm { Grxn }} & \text{Comment}\\ \text{(a)} & \text{ +} & \text{ -} & \text{ -} & \text{ ?}\\ \text{(b)} & \text{ ?} & \text{0} & \text{ -} & \text{Spontaneous}\\ \text{(c)} & \text{ -} & \text{ +} & \text{ ?} & \text{Not Spontaneous}\\ \text{(d)} & \text{0} & \text{ ?} & \text{ -} & \text{Spontaneous}\\ \text{(e)} & \text{ ?} & \text{0} & \text{ +} & \text{ ?}\\ \text{(f)} & \text{ +} & \text{ +} & \text{ ?} & \ {\mathrm { T } \Delta \mathrm { S } > \Delta \mathrm { H }}\\ \end{matrix}$$

$$ \begin{aligned} &\text { Replace each question mark with the correct information: }\\ &\begin{array}{lccll} & \Delta S_{\mathrm{rxn}} & \Delta H_{\mathrm{rxn}} & \Delta G_{\mathrm{rxn}} & \text { Comment } \\ \text { (b) } & ? & 0 & - & \text { Spontaneous } \\ $$

Replace each question mark with the correct information:

$$\begin{matrix} \text{ } & \ {\Delta \mathrm { Srxn }} & \ {\Delta \mathrm { Hrxn }} & \ {\Delta \mathrm { Grxn }} & \text{Comment}\\ \text{(a)} & \text{ +} & \text{ -} & \text{ -} & \text{ ?}\\ \text{(b)} & \text{ ?} & \text{0} & \text{ -} & \text{Spontaneous}\\ \text{(c)} & \text{ -} & \text{ +} & \text{ ?} & \text{Not Spontaneous}\\ \text{(d)} & \text{0} & \text{ ?} & \text{ -} & \text{Spontaneous}\\ \text{(e)} & \text{ ?} & \text{0} & \text{ +} & \text{ ?}\\ \text{(f)} & \text{ +} & \text{ +} & \text{ ?} & \ {\mathrm { T } \Delta \mathrm { S } > \Delta \mathrm { H }}\\ \end{matrix}$$

Replace each question mark with the correct information:

$$\begin{matrix} \text{ } & \ {\Delta \mathrm { Srxn }} & \ {\Delta \mathrm { Hrxn }} & \ {\Delta \mathrm { Grxn }} & \text{Comment}\\ \text{(a)} & \text{ +} & \text{ -} & \text{ -} & \text{ ?}\\ \text{(b)} & \text{ ?} & \text{0} & \text{ -} & \text{Spontaneous}\\ \text{(c)} & \text{ -} & \text{ +} & \text{ ?} & \text{Not Spontaneous}\\ \text{(d)} & \text{0} & \text{ ?} & \text{ -} & \text{Spontaneous}\\ \text{(e)} & \text{ ?} & \text{0} & \text{ +} & \text{ ?}\\ \text{(f)} & \text{ +} & \text{ +} & \text{ ?} & \ {\mathrm { T } \Delta \mathrm { S } > \Delta \mathrm { H }}\\ \end{matrix}$$

Replace each question mark with the correct information:

$$\begin{matrix} \text{ } & \ {\Delta \mathrm { Srxn }} & \ {\Delta \mathrm { Hrxn }} & \ {\Delta \mathrm { Grxn }} & \text{Comment}\\ \text{(a)} & \text{ +} & \text{ -} & \text{ -} & \text{ ?}\\ \text{(b)} & \text{ ?} & \text{0} & \text{ -} & \text{Spontaneous}\\ \text{(c)} & \text{ -} & \text{ +} & \text{ ?} & \text{Not Spontaneous}\\ \text{(d)} & \text{0} & \text{ ?} & \text{ -} & \text{Spontaneous}\\ \text{(e)} & \text{ ?} & \text{0} & \text{ +} & \text{ ?}\\ \text{(f)} & \text{ +} & \text{ +} & \text{ ?} & \ {\mathrm { T } \Delta \mathrm { S } > \Delta \mathrm { H }}\\ \end{matrix}$$

Assuming $\Delta \mathrm { H } ^ { \circ }$ and $\Delta \mathrm { S } ^ { \circ }$ do not change with temperature, can graphite be converted to diamond spontaneously at 1 atm?