1
JEE Advanced 2018 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-1
A reversible cyclic process for an ideal gas is shown below. Here, $$P, V,$$ and $$T$$ are pressure, volume and temperature, respectively. The thermodynamic parameters $$q,w, H$$ and $$U$$ are heat, work, enthalpy and internal energy, respectively.

JEE Advanced 2018 Paper 1 Offline Chemistry - Thermodynamics Question 29 English

The correct option(s) is (are)
A
$${q_{Ac}} = \Delta {U_{BC}}\,\,$$ and $${w_{AB}} = {P_2}\left( {{V_2} - {V_1}} \right)$$
B
$${w_{BC}} = {P_2}\left( {{V_2} - {V_1}} \right)\,\,$$ and $${q_{BC}} = \Delta {H_{AC}}$$
C
$$\Delta {H_{CA}} < \Delta {U_{CA}}\,\,$$ and $$\,\,{q_{AC}} = \Delta {U_{BC}}$$
D
$$\,\,{q_{BC}} = \Delta {H_{AC}}\,\,$$ and $$\Delta {H_{CA}} > \Delta {U_{CA}}$$
2
JEE Advanced 2018 Paper 1 Offline
Numerical
+3
-0
Liquids A and B form ideal solution over the entire range of composition. At temperature $$T,$$ equimolar binary solution of liquids $$A$$ and $$B$$ has vapor pressure $$45$$ $$Torr.$$ At the same temperature, a new solution of $$A$$ and $$B$$ having mole fractions $${X_A}$$ and $${X_B}$$, respectively, has vapour pressure of $$22.5$$ $$Torr.$$ The value of $${x_A}/{x_B}$$ in the new solution is ___________.

(given that the vapor pressure of pure liquid $$A$$ is $$20$$ $$Torr$$ at temperature $$T$$)
Your input ____
3
JEE Advanced 2018 Paper 1 Offline
Numerical
+3
-0
The solubility of a salt of weak acid $$(AB)$$ at $$pH\,$$ $$3$$ is $$Y \times {10^{ - 3}}$$ $$mol\,{L^{ - 1}}.$$ The value of $$Y$$ is ________________.

(Given that the value of solubility product of $$AB$$ $$\left( {{K_{sp}}} \right) = 2 \times {10^{ - 10}}$$ and the value of ionization constant of $$HB$$ $$\left( {{K_a}} \right) = 1 \times {10^{ - 8}}$$)
Your input ____
4
JEE Advanced 2018 Paper 1 Offline
Numerical
+3
-0
A closed tank has two compartments $$A$$ and $$B,$$ both filled with oxygen (assumed to be ideal gas). The partition separating the two compartments is fixed and is a perfect heat insulator (Figure $$1.$$). If the old partition is replaced by a new partition which can slide and conduct heat but does NOT allow the gas to leak across (Figure $$2$$), the volume (in $${m^3}$$) of the compartment A after the system attains equilibrium is ______________.

JEE Advanced 2018 Paper 1 Offline Chemistry - Equilibrium Question 14 English
Your input ____
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