Thermodynamics

JEE Main · Chemistry · 18 past questions

These are the board's own papers. 151 more board questions reprinted in the books we use in class are for signed-in students: sign in.

Q1 2026 2 Apr Shift 1

Consider the following data.…
Q2 2026 2 Apr Shift 1

Given below are two statements…
Q3 2026 2 Apr Shift 1

At the transition temperature T, $\mathrm{A} \rightleftharpoons \mathrm{B}$ and $\Delta G^0 = 105 - 35\log T$…
Q4 2026 2 Apr Shift 2

Gas 'A' undergoes change from state 'X' to state 'Y'. In this process, the heat absorbed and work done by the…
Q5 2026 2 Apr Shift 2

Given below are two statements…
Q6 2026 4 Apr Shift 1

Given below are two statements…
Q7 2026 4 Apr Shift 2

The 1$^{st}$ ionization enthalpy for Mg is +737 kJ/mol. The most probable estimated value of the 2$^{nd}$…
Q8 2026 4 Apr Shift 2

If 3.365g of ethanol ($l$) is burnt completely in a bomb calorimeter at 298.15 K, the heat produced is 99.472…
Q9 2026 4 Apr Shift 2

For the following reaction at 50 °C and at 2 atm pressure…
Q10 2026 5 Apr Shift 2

Consider the following data for the reaction…
Q11 2026 5 Apr Shift 2

The **correct** order of molar heat capacities measured at 298 K and 1 bar is…
Q12 2026 6 Apr Shift 1

Arrange the following isothermal processes in order of the magnitude of the work (p − V) involved between…
Q13 2026 6 Apr Shift 1

First and second ionization enthalpies of lithium are 520 kJ mol$^{-1}$ and 7297 kJ mol$^{-1}$ respectively.…
Q14 2026 6 Apr Shift 1

Consider the reaction X ⇌ Y at 300 K. If $\Delta H^\theta$ and K are 28.40 kJ mol$^{-1}$ and…
Q15 2026 6 Apr Shift 2

Match List - I with List - II.…
Q16 2026 6 Apr Shift 2

In a period, the first ionisation enthalpy of the element at extreme left and the negative electron gain…
Q17 2026 6 Apr Shift 2

The correct order of first (ΔiH1) and second (ΔiH2) ionisation enthalpy values of Cr and Mn are : A. ΔiH1…
Q18 2026 8 Apr Shift 2

Consider the reaction…