N Awasthi Physical Chemistry
For the reaction A (g)+3B (g) ⇌ 2C (g) at 27 degree C, 2 moles of A, 4 moles of B and 6 moles of C are present in 2 lit vessel. If Kc for the reaction 1.2, the reaction will proceed in:
11
Nov
For the reaction A (g)+3B (g) ⇌ 2C (g) at 27 degree C, 2 moles of A, 4 moles of B and 6 moles of C are present in 2 lit vessel. If Kc for the reaction 1.2, the reaction will proceed in: 2 moles of A 4 moles of B and 6 moles of [...]
Consider the reaction 2SO2 (g) + O2(g) ⇌ 2SO3 (g) for which Kc = 278M^−1. 0.001 mole of each of the reagents SO2(g), O2(g) and SO3 (g) are mixed in a 1.0 L flask. Determine the reaction quotient of the system and spontaneous direction of the system.
11
Nov
Consider the reaction 2SO2 (g) + O2(g) ⇌ 2SO3 (g) for which Kc = 278M^−1. 0.001 mole of each of the reagents SO2(g), O2(g) and SO3 (g) are mixed in a 1.0 L flask. Determine the reaction quotient of the system and spontaneous direction of the system. Consider the reaction 2SO2 (g) + O2(g) ⇌ [...]
The equilibrium constant for a reaction is k1 and the reaction quotient is Q. For a particular reaction mixture, the ratio K/Q is 0.33. This means that:
10
Nov
The equilibrium constant for a reaction is k1 and the reaction quotient is Q. For a particular reaction mixture, the ratio K/Q is 0.33. This means that: The equilibrium constant for a reaction is k1 and the reaction quotient is Q. For a particular reaction mixture the ratio K/Q is 0.33. This means that: November [...]
The equilibrium constant Kc for the reaction P4(g)⇌2P2 (g) is 1.4 at 400^∘C. Suppose that 3 moles of P 4 (g) and 2 moles of P2 (g) are mixed in 2 litre container at 400^∘C. What is the value of reaction quotient (Q c )?
10
Nov
The equilibrium constant Kc for the reaction P4(g)⇌2P2 (g) is 1.4 at 400^∘C. Suppose that 3 moles of P 4 (g) and 2 moles of P2 (g) are mixed in 2 litre container at 400^∘C. What is the value of reaction quotient (Q c )? Find out the difference in number of angular nodes [...]
Calculate the value of A. A = E1,2/2E2,1 where En,z = energy of electron in nth orbit, z = atomic number of hydrogen like species.
10
Nov
Calculate the value of A. A = E1,2/2E2,1 where En,z = energy of electron in nth orbit, z = atomic number of hydrogen like species. 1 where En 2/2E2 Calculate the value of A. A = E1 z = atomic number of hydrogen like species. z = energy of electron in nth orbit November 10, [...]
In a sample of excited hydrogen atoms electrons make transition from n=2 to n=1 emitted quanta strike on a metal of work function (phi) 4.2eV. Calculate the wavelength (in A0) associated with ejected electrons having maximum kinetic energy.
10
Nov
In a sample of excited hydrogen atoms electrons make transition from n=2 to n=1 emitted quanta strike on a metal of work function (phi) 4.2eV. Calculate the wavelength (in A0) associated with ejected electrons having maximum kinetic energy. Find out the difference in number of angular nodes and number of radial nodes in the orbital [...]
An α particle moving with velocity 1/30 th times of velocity of light. If uncertainty in position is 3.31/π pm, then minimum uncertainty in kinetic energy is y×10^−16 J. Calculate the value of y.
10
Nov
An α particle moving with velocity 1/30 th times of velocity of light. If uncertainty in position is 3.31/π pm, then minimum uncertainty in kinetic energy is y×10^−16 J. Calculate the value of y. An α particle moving with velocity 1/30 th times of velocity of light. If uncertainty in position is 3.31/π pm then [...]
Find the separation between two electron (in Å) in vacuum, if electrostatic potential energy between these electrons in 7.67×10^−19)J. [Given: e= 1.6×10^−19C ∈o=8.85×10^−12 J^(-1)C^(2)m^(-1)π=3.14]
10
Nov
Find the separation between two electron (in Å) in vacuum, if electrostatic potential energy between these electrons in 7.67×10^−19)J. [Given: e= 1.6×10^−19C ∈o=8.85×10^−12 J^(-1)C^(2)m^(-1)π=3.14] Find the separation between two electron (in Å) in vacuum if electrostatic potential energy between these electrons in 7.67×10^−19)J. [Given: e= 1.6×10^−19C ∈o=8.85×10^−12 J^(-1)C^(2)m^(-1)π=3.14] November 10, 2020 Category: Chapter 2 - [...]
For 3s orbital of hydrogen atom, the normalised wave function is Ψ3s=1(81) root3π−√(1/ao)^3/2[27 − 18r/ao + 2r^2/a^2o]e^−r/3ao If distance between the radial nodes is d, calculate the value of d/1.73ao
10
Nov
For 3s orbital of hydrogen atom, the normalised wave function is Ψ3s=1(81) root3π−√(1/ao)^3/2[27 − 18r/ao + 2r^2/a^2o]e^−r/3ao If distance between the radial nodes is d, calculate the value of d/1.73ao calculate the value of d/1.73ao For 3s orbital of hydrogen atom the normalised wave function is Ψ3s=1(81) root3π−√(1/ao)^3/2[27 − 18r/ao + 2r^2/a^2o]e^−r/3ao If distance between [...]
When an electron makes transition from (n+1)state to n state the wavelength of emitted radiations is related to n (n>>>1) according to λ∝nx. What is the value of x ?
10
Nov
When an electron makes transition from (n+1)state to n state the wavelength of emitted radiations is related to n (n>>>1) according to λ∝nx. What is the value of x ? When an electron makes transition from (n+1)state to n state the wavelength of emitted radiations is related to n (n>>>1) according to λ∝nx. What is [...]