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Is the entropy of the universe constant ...

Is the entropy of the universe constant ?

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A : The energy of the universe is constant, whereas the entropy of the universe is continuously increasing. R : For spontaneous process Delta S gt 0 .

Which of the following statement is true regarding the entropy of the universe?

The universe is

As per second law of thermodynamics a process taken place spontaneously if and only if the entropy of the universe increases due to the process. Change in entropy is given by Delta S = (Q_(rev))/(T) What is the change in entropy of the universe due to the following reaction occuring at 27^(@)C ? A + 2B rarr C + 2D, Delta H = +1.8 kJ mol^(-1) Molar entropy values of A, B, C and D are 1,2,3 and 4 JK^(-1) mol^(-1) respectively.

As per second law of thermodynamics a process taken place spontaneously if and only if the entropy of the universe increases due to the process. Change in entropy is given by Delta S = (Q_(rev))/(T) A gas C_(V) = (0.2 T) Cal K^(-1) . What is the change in its entropy when one mole of it is heated from 27^(@)C to 127^(@)C at constant volume ?

Which of the following statement is true. The entropy if the universe

In the equation of state of an ideal gas PV =nRT , the value of the universal gas constant is not correct :

The specific heat capacity of hydrogen at constant'pressure and constant volume are 14280 J kg ^(-1) K ^(-1) and 10110 J kg ^(-1) K ^(-1) respectively. Calculate the value of the universal gas constant.

The value of entropy of the universe is always

The unit of universal gas constant is

ICSE-CHEMICAL THERMODYNAMICS -TRUE OR FALSE. TYPE QUESTIONS
  1. For an isobaric process, DeltaP=0.

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  2. What is the sign convention for work?

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  3. Work done in the isothermal reversible expansion of a gas is always gr...

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  4. The total energy of the universe is increasing day by day.

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  5. DeltaE=E("initial state")-E("final state")

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  6. The heat absorbed in a reaction at constant temperature and constant v...

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  7. A bomb calorimeter measures DeltaG of a combustion process.

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  8. For the reaction, Zn(s) + 2HCl (aq) to ZnCl 2(aq) + H2(g) , DeltaH...

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  9. Decomposition of CaCO3 is a reversible reaction when carried out in ...

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  10. State True/False All spontaneous process proceed in one direction on...

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  11. The units of DeltaS are JK^(-1) mol^(-1).

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  12. The absolute entropy of a liquid is less than of the solid.

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  13. Is the entropy of the universe constant ?

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  14. A process is non-spontaneous when DeltaS("total") lt 0.

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  15. For an irreversible process, DeltaS gt 0.

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  16. Heat can be converted completely into equivalent amount of work withou...

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  17. A chemical process always proceeds in the direction in which the Gibbs...

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  18. A process is feasible if ΔH is positive and ΔS is negative

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  19. DeltaG is a measure of the net work done by a system. True/False.

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  20. At absolute zero, the entropy of a pure crystal is zero. This is

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