1
JEE Advanced 2020 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2
Change Language
In thermodynamics, the p-V work done is given by

$$w = - \int {dV{p_{ext}}} $$

For a system undergoing a particular process, the work done is

$$w = - \int {dV\left( {{{RT} \over {V - b}} - {a \over {{V^2}}}} \right)} $$

This equation is applicable to a
A
system that satisfies the van der Walls' equation of state
B
process that is reversible and isothermal
C
process that is reversible and adiabatic
D
process that is irreversible and at constant pressure
2
JEE Advanced 2019 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-1
Change Language
Choose the reaction(s) from the following options, for which the standard enthalpy of reaction of equal to the standard enthalpy of formation.
A
2C(g) + 3H2(g) $$ \to $$ C2H6(g)
B
2H2(g) + O2(g) $$ \to $$ 2H2O(l)
C
$${3 \over 2}$$O2(g) $$ \to $$ O3(g)
D
$${1 \over 8}$$S8(s) + O2(g) $$ \to $$ SO2(g)
3
JEE Advanced 2018 Paper 2 Offline
MCQ (More than One Correct Answer)
+3
-0.75
For a reaction, $$A\,\,\rightleftharpoons\,\,P,$$ the plots of $$\left[ A \right]$$ and $$\left[ P \right]$$ with time at temperature $${T_1}$$ and $${T_2}$$ are given below.

JEE Advanced 2018 Paper 2 Offline Chemistry - Thermodynamics Question 27 English
If $${T_2} > {T_1},$$ the correct statement(s) is (are) (Assume $$\Delta {H^ \circ }$$ and $$\Delta {S^ \circ }$$ are independent of temperature and ratio of $$lnK$$ at $${T_1}$$ to $$lnK$$ at $${T_2}$$ is greater than $${{{T_2}} \over {{T_1}}}.$$ Here $$H,$$ $$S,G$$ and $$K$$ are enthalpy, entropy, Gibbs energy and equilibrium constant, respectively.)
A
$$\Delta {H^ \circ } < 0,\Delta {S^ \circ } < O$$
B
$$\Delta {G^ \circ } < 0,\Delta {H^ \circ } > 0$$
C
$$\Delta {G^ \circ } < 0,\Delta {S^ \circ } < 0$$
D
$$\Delta {G^ \circ } < 0,\Delta {S^ \circ } > 0$$
4
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 $$\Delta {H_{CA}} > \Delta {U_{CA}}$$
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