Reversible expansion of an ideal gas under isothermal and adiabatic conditions are as shown in the figure.
$AB \to$ Isothermal expansion
$AC \to$ Adiabatic expansion
Which of the following options is not correct?

  • A
    $\Delta S_{\text{isothermal}} > \Delta S_{\text{adiabatic}}$
  • B
    $T_{A} = T_{B}$
  • C
    $W_{\text{isothermal}} > W_{\text{adiabatic}}$
  • D
    $T_{C} > T_{A}$

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The reversible expansion of an ideal gas under adiabatic and isothermal conditions is shown in the figure. Which of the following statement$(s)$ is (are) correct?
$(A)$ $T_1 = T_2$
$(B)$ $T_3 > T_1$
$(C)$ $W_{\text{isothermal}} > W_{\text{adiabatic}}$
$(D)$ $\Delta U_{\text{isothermal}} > \Delta U_{\text{adiabatic}}$

For the reaction $2Cl_{(s)} \to Cl_{2(s)}$,the signs of $\Delta H$ and $\Delta S$ respectively are

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Which of the following is (are) an endothermic reaction?

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