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(A): Entropy of a perfect crystalline su...

(A): Entropy of a perfect crystalline substance at absolute zero is zero
(R ): At absolute zero translation kinetic energy of a system is zero.

A

A and R are true, R explains A

B

A and R are true, R does not explain A

C

A is true, but R is false

D

A is false, but R is true

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The correct Answer is:
A
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AAKASH SERIES-CHEMICAL THERMODYNAMICS-Practice Sheet- Exercise-IV
  1. For a perfectly crystalline solid C(p.m) = aT^(3), where a is constant...

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  2. A copper block of mass 'm' at temperature 'T(1)' is kept in the open a...

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  3. The ratio of P to V at any instant is constant and is equal to 1. for ...

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  4. Which of the following statements are incorrect

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  5. A diatomic ideal gas initially at 273K is given 100cal heat due to whi...

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  6. For an ideal monoatomic gas during any process T=kV, find out the mola...

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  7. Here T(1) and T(2) are

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  8. (A): Entropy of a perfect crystalline substance at absolute zero is ze...

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  9. Which of the following statement is incorrect?

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  10. The entropy change of x(2) gas, during the following irreversible proc...

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  11. For polytropic process PV^(n) = constant, C(m) (molar heat capacity) o...

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  12. 2 mole of an ideal mono atomic gas undergoes a reversible process for ...

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  13. Which of the following representation is not correct for the change be...

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  14. An ideal gas in a thermally insulated vessel at internal pressure = P(...

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  15. Match the following columns

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  16. For a perfectly cyrstalline solid C(p,m)= a T^(3) + bT, where a and b ...

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  17. The molar entropies of HI((g)), H((g)) and I((g)) at 298K are 206.5, 1...

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  18. The enthalpy changes of some process are given below alpha-D "glucos...

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  19. The number of correct statements among the following 1 The expansion...

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  20. In a particular experiment, a gas undergoes adiabatic expansion satisf...

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