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Recent questions tagged chemical thermodynamics
+3
votes
1
answer
Calculate the enthalpy change during the reaction. H2(g) + Br2(g) → 2HBr(g).
asked
Apr 6, 2019
in
Chemistry
by
kratos
neet
cbse
thermochemistry
class-11
aiims
physical chemistry
chemical thermodynamics
class-12
+3
votes
1
answer
The bond-dissociation energies of gaseous H2.Cl2 and HCI are 104, 58 and 103 kcal/mol respectively.
asked
Apr 5, 2019
in
Class 12
by
kratos
neet
thermodynamic
class-11
jee
aiims
chemical thermodynamics
jee mains
heat
+3
votes
1
answer
Which of the following is incorrect regarding the first law of thermodynamics? (a) It is not applicable to any cyclic process
asked
Apr 3, 2019
in
JEE
by
kratos
class-11
jee
chemical thermodynamics
thermodynamics
jee mains
heat and thermodynamics
+2
votes
1
answer
Ka for CH3COOH at 25C is 1.754 × 10^–5 . At 50C, Ka is 1.633 × 10^–5 What will be value of Δ * for the
asked
Apr 3, 2019
in
JEE
by
kratos
chemical thermodynamics
jee mains
jee
+2
votes
1
answer
Predict which of the following reaction(*) has a positive entropy change?
asked
Apr 2, 2019
in
Class 12
by
kratos
neet
class-11
aiims
chemical thermodynamics
thermodynamics
+3
votes
1
answer
Express the change in internal energy of a system when:- No heat is absorbed by the system from the surroundings, but work
asked
Apr 2, 2019
in
Class 11
by
kratos
chemical thermodynamics
class-11
cbse
+1
vote
1
answer
Define (i) Molar enthalpy of fusion (ii) Molar enthalpy of vaporization?
asked
Apr 2, 2019
in
JEE
by
kratos
class-11
jee
chemical thermodynamics
thermodynamics
jee mains
class-12
+2
votes
1
answer
One mole of an ideal monoatomic gas expands isothermally against constant external pressure of 1 atm from initial
asked
Apr 2, 2019
in
JEE
by
kratos
class-11
jee
chemical thermodynamics
thermodynamics
jee mains
heat
+1
vote
1
answer
Under isothermal condition, a gas at 300 K expands from 0.1 L to 0.25 L against a constant external pressure of 2 bar.
asked
Apr 2, 2019
in
Class 12
by
kratos
neet
class-11
aiims
jee
kvpy
chemical thermodynamics
thermodynamics
jee mains
class-12
neet 2019
+1
vote
1
answer
For the process H2O (l) (1 bar, 373 K) →H2O (G) (1 bar, 373 K), the correct set of thermodynamic parameters is
asked
Apr 1, 2019
in
JEE
by
kratos
class-11
jee
chemical thermodynamics
thermodynamics
jee mains
heat
+1
vote
1
answer
4 mole of an ideal gas having γ = 1.67 are mixed with 2 mole of another ideal gas having γ = 1.4. Find the equivalent value of γ for the mixture.
asked
Apr 1, 2019
in
JEE
by
kratos
chemical thermodynamics
jee
jee mains
+2
votes
1
answer
What do you understand by state functions? Neither q nor w is a state function but q+ w is a state function? Explain.
asked
Apr 1, 2019
in
Class 11
by
kratos
chemical thermodynamics
thermodynamics
class-11
cbse
+1
vote
1
answer
If a refrigerator’* door is opened, then we get (A) Room heated
asked
Mar 31, 2019
in
Class 12
by
kratos
neet
class-11
aiims
jee
chemical thermodynamics
thermodynamics
jee mains
+3
votes
1
answer
From the given data, what is the bond enthalpy of Cl-Cl bond (A) 70 kCal (B) 80 kCal
asked
Mar 31, 2019
in
JEE
by
kratos
chemical thermodynamics
class-11
jee
jee mains
+1
vote
1
answer
Define bond energy.
asked
Mar 31, 2019
in
JEE
by
kratos
chemical thermodynamics
class-11
jee
jee mains
+2
votes
1
answer
4NH3(g) + 5O2(g) ⇌ 4NO(g) + 6H2O(g) reaction will get affected by increase of pressure? Also mention, whether change
asked
Mar 30, 2019
in
Chemistry
by
kratos
class-11
jee
physical chemistry
chemical thermodynamics
chemical reactions and equations
chemical reaction and catalyst
class-10
jee mains
equilibrium
class-12
chemical kinetics
+3
votes
1
answer
Predict the sign of ΔS for the following reaction CaCO3 (*) + heat → CaO (*) + CO2 (g)
asked
Mar 29, 2019
in
Class 11
by
kratos
cbse
class-11
chemical thermodynamics
thermodynamics
equilibrium
+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
Calculate ΔG° for the reaction in Example 1, the decomposition of calcium carbonate, from ΔH° and ΔS° values.
asked
Mar 29, 2019
in
JEE
by
kratos
physical and chemical equilibrium
class-11
chemical thermodynamics
jee mains
atoms and molecules
jee
class-9
+1
vote
1
answer
The energy absorbed as heat by an ideal gas for an isothermal process equals:
asked
Mar 28, 2019
in
JEE
by
kratos
jee
chemical thermodynamics
thermodynamics
jee mains
class-12
heat
kinetic theory of gases
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