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Which of the following is the correct ex...

Which of the following is the correct expression for the change in internal energy used for general case?

A

`DeltaU=q`

B

`DeltaU=w`

C

`DeltaU=q+W`

D

`DeltaU=W_("adiabatic")`

Text Solution

Verified by Experts

The correct Answer is:
C
In general case, change in internal energy is
`DeltaU=q+W`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-CHEMICAL THERMODYNAMICS AND ENERGETIC-Exercise 1
  1. Which of the following statement/expression is/are correct?

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  2. In a process, 701 J of heat is absorbed by a system and 394 J of work ...

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  3. Which of the following is the correct expression for the change in int...

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  4. The change in internal energy for an isolated system at constannt volu...

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  5. For the equilibrium, A(g)hArrB(g),DeltaH is -40kJ//mol, if the ratio o...

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  6. Based on the first law of thermodynamics, which one of the following s...

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  7. Select the correct statement/expression about the graph.

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  8. If 1 mole of an ideal gas exapands isothermally at 37^(@)C from 15 L t...

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  9. An ideal gas expands from 10^(-3) m^(3) to 10^(-2) m^(3) at 300 K agai...

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  10. For an ideal gas, pressure (p) and interal energy (E ) per unit volume...

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  11. How many joules of heat are absorbed when 70.0 g of water is completel...

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  12. Change in internal energy when 4 kJ of work is done on the system and ...

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  13. A system absorb 600 J of heat and work equivalent to 300 J on its surr...

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  14. Select the correct formula about the change in enthalpy.

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  15. Select the correct formula for Delta(sol)H^(-).

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  16. Which of the following statement is correct regarding melting of ice?

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  17. Which of the following is not an endothermic reaction?

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  18. Given : S((s))+(3)/(2)O(2(g))rarrSO(3(g)+2X Kcal SO(2(s))+(1)/(2)O(2...

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  19. In the given reaction, Na(s)toNa(g) The enthalpy of atomisation is s...

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  20. In the following process, H(2)(g) to 2H(g), " "Delta(H-H)H^(ө)=43...

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