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Is the entropy of the universe constant ...

Is the entropy of the universe constant ?

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To determine whether the entropy of the universe is constant, we need to understand the concept of entropy and the laws of thermodynamics, particularly the second law. ### Step-by-Step Solution: 1. **Define Entropy**: - Entropy is a measure of the disorder or randomness in a system. The greater the disorder, the higher the entropy. **Hint**: Remember that entropy is related to the level of disorder in a system. ...
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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 -VERY SHORT ANSWER TYPE QUESTIONS
  1. If a system absorbs q amount of heat at temperature T, what would be t...

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  2. Define the term absolute entropy.

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  3. Is the entropy of the universe constant ?

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  4. Amongst a gaseous substance and a liquid substance, which is expected ...

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  5. For a process to be spontaneous :

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  6. Which of the following are expected not to have zero entropy even at a...

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  7. What is the sign of DeltaS for a spontaneous reaction ?

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  8. How does the entropy change occur in the process of melting of a solid...

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  9. Write the expression which gives the entropy of vapourisation of a liq...

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  10. State and explain the second law of thermodynamics.

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  11. Gibbs Free Energy

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  12. What is the enthalpy of formation of the most stable form of an elemen...

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  13. What does the term T DeltaS("total") total represent ?

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  14. What is the free energy criterion for a process to occur spontaneously...

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  15. The free energy change DeltaG = 0, when

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  16. An endothermic process involves an increase in the entropy of the syst...

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  17. An exothermic reaction involves a decrease in the entropy of the syste...

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  18. How is standard free energy change related to equilibrium constant ?

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  19. State the third law of thermodynamics.

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  20. What do you understand by the term thermochemistry ?

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