Select the correct statement - Vidyadip

MCQ

Select the correct statement

A
Entropy change of all the elementry reactions increases with increases in temperature
B
Enthalpy change of all the elementry reactions increases with increase in temperature
✓
Rate constant of all the elementry reaction increases with increase in temperature
D
Activation energy of all the elementry reaction increases with increase in temperature

✓

Answer

Correct option: C.

Rate constant of all the elementry reaction increases with increase in temperature

c
$\left(\Delta \mathrm{S}_{\mathrm{r}}\right)_{\mathrm{T}_{2}}-\left(\Delta \mathrm{S}_{\mathrm{r}}\right)_{\mathrm{T}_{1}}=\left(\Delta \mathrm{C}_{\mathrm{p}}\right)_{\mathrm{r}} \ln \frac{\mathrm{T}_{2}}{\mathrm{T}_{1}}$

$(A)$ It depends on $\left(\Delta \mathrm{C}_{\mathrm{p}}\right)_{\mathrm{r}}$

$(B)$ It depends on $\left(\Delta \mathrm{C}_{\mathrm{p}}\right)_{\mathrm{r}}$

$(C)$ $\mathrm{k}=4 \mathrm{e}^{-\mathrm{E} \mathrm{a} / \mathrm{RT}}$

$(D)$ Activation energy is independent of

temperature

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