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Which of the indicated relationship is c...

Which of the indicated relationship is correct for the following exothermic reaction carried out at constant pressure?
`CO(g) +3H_(2)(g ) rarrCH_(4)(g)+H_(2)O(g)`

A

`DeltaU = DeltaH`

B

`DeltaU gt DeltaH`

C

`w lt 0`

D

`q gt 0`

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaH=DeltaU+Deltan_(g)RT, " "Deltan_(g)=-2, " "DeltaH lt DeltaU`
`w=-Deltan_(g)RT, " "wgt 0 , " "q=-ve`
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NARENDRA AWASTHI-THERMODYNAMICS-Exercise
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  2. Consider the reaction at 300 K H(2)(g)+Cl(2)(g)to2HCl(g), DeltaH...

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  3. Which of the indicated relationship is correct for the following exoth...

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  4. One mole of an ideal gas undergoes a change of state (2.0) atm, 3.0 L)...

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  5. What is the change internal energy when a gas contracts from 377 mL ...

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  6. For the real gases reaction, 2CO(g)+O(2)(g)to2CO(2)(g),DeltaH=-560 k...

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  7. One mole of non- ideal gas undergoes a change of state (1.0 atm, 3.0L,...

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  8. Consider the reacting at 300K C(6)H(6)(l)+(15)/(2)O(2)(l)rarr 6CO(2)...

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  9. For the reaction , FeCO(3)(s)rarrFeO(s)+CO(2)(g),DeltaH=82.8kJ at 25^(...

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  10. At 5xx10^(5) bar pressure density of diamond and graphite are 3 g//c c...

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  11. Predict which of the following reaction (s) has a positive entropy cha...

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  12. Predict which of the following reaction(s) has a negative entropy chan...

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  13. Which of the following reactions is asssociated with the most negative...

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  14. When two moles of an ideal gas (C(p.m.)=(5)/(2)R) heated form 300K to ...

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  15. Which of the following expression for entropy change of an irreversibl...

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  16. Which of the following expression is known as Clausius inequality ?

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  17. When two moles of ideal gas (Cv = 3/2R) heated from 300 K to 600 K at ...

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  18. If one mole of an ideal gas (C(p.m.)=(5)/(2)R) is expanded isothermall...

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  19. If one mole of an ideal gas Cp = 5/2 R is expanded isothermally at 300...

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  20. When one mole of an ideal gas is compressed to half of its initial vol...

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