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The efficiency of engine working betwee...

The efficiency of engine working between 100 to 400 K ____

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`eta=[(T_1-T_2)/T_1]xx100`
`T_1`=400 K
`T_2`=100 K
`therefore eta =[(400-100)/400]xx100 =300/400 xx 100 =(300cancel0cancel0)/(4cancel0cancel0)=300/4`=75%
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FULL MARKS-THERMODYNAMICS -Additional Questions Solved (III) Fill in the Blanks
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  2. The standard conditions for G^0 are

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  3. The efficiency of engine working between 100 to 400 K

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  4. Entropy is a function

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  5. An efficiency of an engine is always

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  6. If system moves from ordered state to disordered state, its entropy

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  7. In a reversible process, the change in entropy of the universe is

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  8. We consider a thermodynamic system. If DeltaU represent the increase i...

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  9. The net work done by the system

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  10. The enthalpy of vaporization of a liquid is 30 kJ "mol"^(-1) and the ...

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  11. In a reversible process DeltaS"sys"+DeltaS"surr" is

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  12. The standard free energy change (DeltaG^0) is related to equilibrium c...

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  13. Entropy change involved in the conversion of 1 mole of liquid water a...

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  14. The intensive property among the quantities is

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  15. System in which there is no exchange of matter , work or energy from s...

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  16. A gas can expand from 100 ml to 250 ml under a constant pressure of 2 ...

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  17. An ideal gas expands from the volume of 1xx10^(-3)m^3 to 1xx10^(-2) m^...

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  18. In general , for an exothermic reaction to be spontaneous temperature ...

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  19. Heat of neutralization of a strong acid by a strong base is a constant...

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  20. The heat absorbed at constant volume is equal to the system's change i...

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