Class 11th
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New answer posted
5 months ago
Contributor-Level 10
(i) Reversible work is represented by the combined areas
(ii) Work against constant pressure, Pf is represented by the area
Work (i) > Work (ii).
The Approach While Dealing With the Concept of Thermodynamics
Since the concept of Thermodynamics and the terminologies of Chemistry are a bit new to the students, they should first learn the names of different chemical components and how to write the chemical equations properly through NCERT Exemplars and Solutions books.While writing the chemical equations, they might make some mistakes. To avoid making errors, they shoul
New answer posted
5 months agoContributor-Level 10
This is a Long Answer Type Questions as classified in NCERT Exemplar
We know,
ΔStotal = ΔSsys + ΔSsurr
When a system is in thermal equilibrium with its surroundings, the surroundings' temperature is the same as the system's. Furthermore, a rise in the enthalpy of the surroundings equals a decrease in the system's enthalpy. As a result of the entropy shift in the environment,
ΔSsurr = ΔHsurr/T = -ΔHsys/T
ΔStotal = ΔSsys = (-ΔHsys/T)
Rearranging the above equation:
ΔStotal = TΔSsys - ΔHsys
For spontaneous process,
ΔStotal > 0, so
TΔSsys - ΔHsys> 0
⇒ ( - ΔHsys - TΔSsys) > 0
The above equation can be written as
- ΔG > 0
ΔG
New answer posted
5 months agoContributor-Level 10
This is a Long Answer Type Questions as classified in NCERT Exemplar
A contrast is drawn in thermodynamics between extensive and intense qualities. An extensive property is one whose value is proportional to the amount or size of matter in the system. Extensive properties include mass, volume, internal energy, enthalpy, and heat capacity, to name a few.
Properties that are independent of the amount or size of matter present are known.
As though they were intensive properties Temperature, density, and pressure, for example, are intense properties. A molar property? m, is the value of an extensive property of the system for 1 mol of the sub
New question posted
5 months agoNew answer posted
5 months agoContributor-Level 10
This is a assertion and reason answer type question as classified in NCERT Exemplar
(i) Statements A and R both are correct and R is the correct explanation of A. Since, metals like Pd and Pt adsorbs a large volume of hydrogen, hence, these are used as a storage media for it.
New answer posted
5 months agoContributor-Level 10
This is a assertion and reason answer type question as classified in NCERT Exemplar
(i) Statements A and R both are correct and R is the correct explanation of A.
MCl2+Na2CO3→ MCO3+2NaCl
MSO4+Na2CO3→MCO3+Na2SO4
New answer posted
5 months agoContributor-Level 10
This is a matching answer type question as classified in NCERT Exemplar
(i) → (b); (ii) → (c); (iii) → (a)
New answer posted
5 months agoContributor-Level 10
This is a matching answer type question as classified in NCERT Exemplar
(i)→ (e); (ii)→ (d); (iii)→ (b); (iv)→ (a); (v)→ (c)
New answer posted
5 months agoContributor-Level 10
This is a matching answer type question as classified in NCERT Exemplar
(i)→ (d); (ii)→ (b); (iii)→ (c); (iv)→ (a)
New answer posted
5 months agoContributor-Level 10
This is a matching answer type question as classified in NCERT Exemplar
(i) → (j); (ii) → (h); (iii) → (f) : (iv) → (a); (v) → (b); (vi) → (e)
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