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Vibrational energy is...

Vibrational energy is

A

Partially potential and partially kinetic

B

Only potential

C

Only electronic

D

Only kinetic

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The correct Answer is:
A
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At ordinary temperatures, the molecules of an ideal gas have only translational and rotational kinetic energies. At high temperatures, they may also have vibrational energy. As a result of this, at higher temperatures, molar specific heat capacity at constant volume, C_(V) is

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Two simple pendulum first of bob mass M_(1) and length L_(1) second of bob mass M_(2) and length L_(2) M_(1) = M_(2) and L_(1) = 2L_(2) . if the vibrational energy of both is same which is correct?

At a temperature of 0 K , the total energy of a gaseous diatomic molecule AB is approximately given by: E=E_(o)+E_(vib) where E_(o) is the electronic energy of the ground state, and E_(vib) is the vibrational energy. Allowed values of the vibrational energies are given by the expression: E_(vid)=(v-1/2)epsilon " " v=0, 1, 2, ....... " " epsilon=h/(2pi)sqrt(k/mu) " " mu(AB)=(m_(A)m_(B))/(m_(A)+m_(B)) where h is the planck's constant, is the vibration quantum number, k is the force constant, and is the reduced mass of the molecule. At 0K , it may be safely assumed that is zero, and E_(o) and k are independent of isotopic substitution in the molecule. Deuterium, D, is an isotope of hydrogen atom with mass number 2 . For the H_(2) molecule, k is 575.11 N m^(-1) , and the isotopic molar masses of H and D are 1.0078 and 2.0141 g mol^(-1) , respectively. At a temperature of 0K : epsilon_(H_(2))=1.1546 epsilon_(HD) and epsilon_(D_(2))=0.8167 epsilon_(HD) ul("Calculate") the electron affinity, EA, of H_(2)^(+) ion in eV if its dissociation energy is 2.650 eV . If you have been unable to calculate the value for the dissociation energy of H_(2) then use 4.500 eV for the calculate.

At a temperature of 0 K , the total energy of a gaseous diatomic molecule AB is approximately given by: E=E_(o)+E_(vib) where E_(o) is the electronic energy of the ground state, and E_(vib) is the vibrational energy. Allowed values of the vibrational energies are given by the expression: E_(vid)=(v-1/2)epsilon " " v=0, 1, 2, ....... " " epsilon=h/(2pi)sqrt(k/mu) " " mu(AB)=(m_(A)m_(B))/(m_(A)+m_(B)) where h is the planck's constant, is the vibration quantum number, k is the force constant, and is the reduced mass of the molecule. At 0K , it may be safely assumed that is zero, and E_(o) and k are independent of isotopic substitution in the molecule. Deuterium, D, is an isotope of hydrogen atom with mass number 2 . For the H_(2) molecule, k is 575.11 N m^(-1) , and the isotopic molar masses of H and D are 1.0078 and 2.0141 g mol^(-1) , respectively. At a temperature of 0K : epsilon_(H_(2))=1.1546 epsilon_(HD) and epsilon_(D_(2))=0.8167 epsilon_(HD) ul("Calculate") the dissociation energy, DeltaE , in eV of a hydrogen molecule in its ground state such that both H atoms are produced in their ground states.

Each question contains STATEMENTS-1 (Assertion) and STATEMENT -2 (Reason). Examine the statements carefully and mark the correct answer according to the instructions given below: STATEMENT-1: Active complex is an intermediate product. STATEMENT-2: Active complex is unstable with high vibrational energy.

VMC MODULES ENGLISH-THERMODYNAMICS & THERMOCHEMISTRY-Efficient
  1. Which of the following expressions is true for an ideal gas ?

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  2. The expression [deltaU//deltaT](V) represents

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  3. Vibrational energy is

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  4. The work done by the system in a cyclic process involving one mole of ...

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  5. The enthalpy of reaction, H(2)(g) + 1/2 O(2)(g) rarr H(2)O(g) "is" D...

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  6. "The resultant heat change in a reaction is the same whether it takes ...

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  7. NH(3)(g) + 3Cl(2)(g) rarr NCl(3)(g) + 3HCl(g), " "DeltaH(1) N(...

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  8. Which of the following molecules does not have zero entropy even at ze...

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  9. If triangleH(f) (C(2)H(5)-S-C(2)H(5))=-147 kJ/mole and triangleH(f) ...

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  10. How much energy must be supplied to change 36 g of ice at 0^(@)C to wa...

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  11. Consider the values of DeltaH("in" kJ mol^(-)) and for DeltaS("in" mol...

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  12. The enthalpy of neutralisation of a strong acid by a string base is -5...

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  13. Consider the following two reactions : (i) "Propene "+H(2) rarr "Pro...

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  14. Match the thermodynamic property given in column I with its correct cx...

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  15. An ideal gas is taken around the cycle ABCA as shown below: Work do...

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  16. Which among the following is not an exact differential?

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  17. A gas expands adiabatically at constant pressure such that: T prop(1...

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  18. In the Haber 's process of ammonia manufacture: N(2) (g)+3H(2) (g) t...

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  19. In C(2)H(4) energies of formation of (C=C) and (C-C) are -145 kJ/mol a...

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  20. If 150 kJ of energy is needed for muscular work to walk a distance of ...

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