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Recent questions tagged energetics
+3
votes
1
answer
Calculate the RMS velocity of methane molecules at 298 K. R = 8.3 14 J K^-1mol^-1. Molecular weight of methane =16 × 10^-3 kg.
asked
Mar 31, 2019
in
JEE
by
kratos
thermodynamic
jee
jee mains
energetics
states of matter
+2
votes
1
answer
Standard entropy of X2 , Y2 and XY3 are 60, 40 and 50 JK^–1 mol^–1, respectively.
asked
Mar 29, 2019
in
Class 12
by
kratos
neet
thermodynamic
jee
chemical thermodynamics
jee mains
energetics
+3
votes
1
answer
A reaction at 1 bar is non–spontaneous at low temperature but becomes spontaneous at high temperature.
asked
Mar 25, 2019
in
Chemistry
by
kratos
cbse
thermodynamic
class-11
jee
physical chemistry
chemical thermodynamics
thermodynamics
class-12
jee mains
energetics
+3
votes
1
answer
Considering entropy(*) as a thermodynamic parameter, the criterion for the spontaneity of any process the change in entropy is :
asked
Mar 22, 2019
in
Class 12
by
kratos
neet
thermodynamic
class-11
jee
upsee
thermodynamics
energetics
+3
votes
1
answer
In conversion of lime–stone to lime, CaCO3(*) → CaO(*) + CO2(g) the values of ΔH0 and ΔS0 are +179.1 kJ mol^–1 and 160.2 J/K
asked
Mar 21, 2019
in
JEE
by
kratos
thermodynamic
class-11
jee
chemical thermodynamics
jee mains
energetics
+2
votes
1
answer
For a reaction, consider the plot of ln k versus 1/T given in the figure. If the rate constant of this reaction at 400 K
asked
Mar 2, 2019
in
Chemistry
by
kratos
neet
cbse
atoms
surface chemistry
jee
aiims
class-12
jee mains
energetics
chemical kinetics
states of matter
nuclei
+2
votes
1
answer
A schematic plot of ln Keq versus inverse of temperature for a reaction is shown in the figure.
asked
Feb 22, 2019
in
Chemistry
by
kratos
surface chemistry
jee
jee mains
energetics
chemical kinetics
+3
votes
1
answer
Oxidising power of chlorine in aqueous solution can be determined by the parameters indicated below
asked
Feb 22, 2019
in
JEE
by
kratos
thermodynamic
jee
chemical thermodynamics
jee mains
energetics
+2
votes
1
answer
At 298 K, molar conductivity of 0.1 M NH4(OH)(aq) solution 9.54 Ω^–1mol^–1
asked
Feb 13, 2019
in
Chemistry
by
kratos
electrochemistry
thermodynamic
class-11
jee
class-12
jee mains
energetics
states of matter
+2
votes
1
answer
A schematic plot of ln Keq versus inverse of temperature for a reaction is shown in the figure. The reaction must be
asked
Feb 9, 2019
in
Chemistry
by
kratos
surface chemistry
jee
jee mains
energetics
chemical kinetics
+2
votes
1
answer
A system undergoes a cyclic process in which it absorbs Q1 heat and gives out Q2 heat.
asked
Feb 6, 2019
in
JEE
by
kratos
class-11
jee
chemical thermodynamics
thermodynamics
jee mains
energetics
heat
+3
votes
1
answer
Oxidising power of chlorine in aqueous: solution can be determined by the parameters indicated below
asked
Feb 4, 2019
in
Class 12
by
kratos
neet
cbse
thermodynamic
class-11
jee
chemical thermodynamics
jee mains
energetics
kinetic theory
+1
vote
1
answer
Two ideal gases under same pressure and temperature are allowed to mix in an isolated
asked
Feb 3, 2019
in
JEE
by
kratos
energetics
class-11
jee mains
chemical thermodynamics
thermodynamics
jee
thermodynamic
+2
votes
1
answer
Taking a specific example show that ΔStotal is a criterion for spontaneity of a change.
asked
Jan 27, 2019
in
Class 12
by
kratos
neet
thermodynamic
upsee
jee
class-11
thermodynamics
energetics
+2
votes
1
answer
For a particular reversible reaction, at temperature T, ΔH and ΔS were found to be both +ve. If Te is the temperature at equilibrium,
asked
Jan 27, 2019
in
Class 12
by
kratos
neet
thermodynamic
jee
chemical thermodynamics
jee mains
energetics
+3
votes
1
answer
Let e^f(x) = ln x. If g(x) is the inverse function of f(x), then g' (x) equals to:
asked
Jan 25, 2019
in
Chemistry
by
kratos
applications of derivatives
surface chemistry
jee
jee mains
functions
limit
energetics
chemical kinetics
continuity
differentiability
+1
vote
1
answer
An ideal gas expands in volume from 1 × 10^–3m^3 to 1 × 10^–2m^3 at 300K against a constant pressure of 1 × 10^5Nm^–2.
asked
Jan 22, 2019
in
JEE
by
kratos
thermodynamic
class-11
jee
thermodynamics
jee mains
energetics
+3
votes
1
answer
If the bond dissociation energies of XY, X2 and Y2 (all diatomic molecules)
asked
Jan 21, 2019
in
Class 12
by
kratos
neet
thermodynamic
jee
chemical thermodynamics
thermodynamics
jee mains
energetics
+3
votes
1
answer
An ideal gas expands in volume from 1 × 10^–3m^3 to 1 × 10^–2m^3 at 300K against a constant pressure of 1 × 10^5Nm^–2.
asked
Jan 17, 2019
in
Class 12
by
kratos
neet
thermodynamic
class-11
jee
aiims
thermodynamics
jee mains
energetics
+1
vote
1
answer
An ideal gas is allowed to expand both reversibly and irreversibly in an isolated system.
asked
Jan 17, 2019
in
JEE
by
kratos
thermodynamic
jee
chemical thermodynamics
jee mains
energetics
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