$A$ $4.50 \ g$ sample of methane occupies $12.7 \ L$ at $310 \ K$. Calculate the work done in $J$ when the gas undergoes isothermal expansion against a constant external pressure of $200 \ torr$ until the volume increases by $3.3 \ L$. (in $.99$)
- A$-87$
- B$-77$
- C$-73$
- D$-85$
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View SolutionFor the reaction $2 \ NO_{2(g)} \rightleftharpoons N_2O_{4(g)}$,when $\Delta S = -176.0 \ J \ K^{-1} \ mol^{-1}$ and $\Delta H = -57.8 \ kJ \ mol^{-1}$,the magnitude of $\Delta G$ at $298 \ K$ for the reaction is $...... \ kJ \ mol^{-1}$. (Nearest integer)
Data given for the following reaction is as follows:
$FeO_{(s)} + C_{(\text{graphite})} \longrightarrow Fe_{(s)} + CO_{(g)}$
Substance
$\Delta H^{\circ} \text{ (kJ mol}^{-1})$
$\Delta S^{\circ} \text{ (J mol}^{-1} \text{ K}^{-1})$
$FeO_{(s)}$
$-266.3$
$57.49$
$C_{(\text{graphite})}$
$0$
$5.74$
$Fe_{(s)}$
$0$
$27.28$
$CO_{(g)}$
$-110.5$
$197.6$
The minimum temperature in $K$ at which the reaction becomes spontaneous is ....... .
(Integer answer)
$FeO_{(s)} + C_{(\text{graphite})} \longrightarrow Fe_{(s)} + CO_{(g)}$
| Substance | $\Delta H^{\circ} \text{ (kJ mol}^{-1})$ | $\Delta S^{\circ} \text{ (J mol}^{-1} \text{ K}^{-1})$ |
| $FeO_{(s)}$ | $-266.3$ | $57.49$ |
| $C_{(\text{graphite})}$ | $0$ | $5.74$ |
| $Fe_{(s)}$ | $0$ | $27.28$ |
| $CO_{(g)}$ | $-110.5$ | $197.6$ |
The minimum temperature in $K$ at which the reaction becomes spontaneous is ....... .
(Integer answer)
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