Question 4 :
The order of acidic strength of the hydracids of halogen is-

Question 5 :
For the process :<br>H₂O (ℓ, 100°C, 1 atm) → H₂O(g, 100°C, 5 atm)<br>(Assume ideal behaviour of gas, ΔH_vap of H₂O(ℓ) at 100°C and 1 atm = 540 cal/gm, ln5 = 1.6).<br>The correct values for the changes in state function is /are -

Question 6 :
An ideal gas in a thermally insulated vessel at internal pressure {tex} P _ { 1 } {/tex}, volume {tex} V _ { 1 } {/tex} and absolute temperature {tex} T _ { 1 } {/tex} expands irreversibly against zero external pressure as shown in the diagram.<br><img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/JEE%20Advanced/5e2155f0fc00cf4a2586ffd3"><br>The final internal pressure, volume and absolute temperature of the gas are {tex} P _ { 2 } , V _ { 2 } {/tex} and {tex} T _ { 2 } , {/tex} respectively. For this expansion

Question 7 :
For an ideal gas, consider only {tex} p - V {/tex} work in going from an initial state {tex} X {/tex} to the final state {tex} Z {/tex}. The final state can be reached by either of the two paths shown in the figure. Which of the following choice (s) is/are correct? (Take {tex} \Delta S {/tex} as the change in entropy and {tex} w {/tex} as work done.)<br><img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/JEE%20Advanced/5e2155e3fc00cf4a2586ffc9"><br>

Question 8 :
<p> <font face="Cambria Math, serif">The enthalpy change for the process</font></p> <p><img style='object-fit:contain' align="absmiddle" src="https://storage.googleapis.com/teachmint/question_assets/JEE%20Advanced/60009249c4cbb406e8804fb7"/> <font face="Cambria Math, serif">is called</font></p>

Question 9 :
<p> <font face="Cambria Math, serif">Which of the following statements is/are false?</font></p>

Question 10 :
<p> <font face="Cambria Math, serif">Which of the following statements are correct?</font></p>

Question 12 :
<p> <font face="Cambria Math, serif">In which of the following entropy increases?</font></p>

Question 13 :
<p> <font face="Cambria Math, serif">The word ‘standard’ in standard molar enthalpy change implies</font></p>

Question 14 :
<p align="justify"> <font face="Cambria Math, serif">In which of the following cases entropy increases?</font></p>

Question 15 :
<p align="justify"> <font face="Cambria Math, serif">When a solid melts, there is/are:</font></p>

Question 17 :
The value of {tex} \log _ { 10 } K {/tex} for a reaction {tex} A \rightleftharpoons B {/tex} is<br>Given: {tex} \Delta _ { r } H _ { 298 \mathrm { K } } = - 54.07 \mathrm { kJ } \mathrm { mol } ^ { - 1 } , \Delta _ { \mathrm { r } } S _ { 298 \mathrm { K } } ^ { \circ } = 10 \mathrm { JK } ^ { - 1 } \mathrm { mol } ^ { - 1 } {/tex} and {tex} R = 8.314 \mathrm { JK } ^ { - 1 } \mathrm { mol } ^ { - 1 } ; 2.303 \times 8.314 \times {/tex} {tex} 298 = 5705 ) {/tex}<br>