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In a certain process, 400J of work is do...

In a certain process, `400J` of work is done on a system which gives off `200J` of heat. What is `DeltaU` for the process?

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`DeltaU = q+w =- 200 +400 = 200J`
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CENGAGE CHEMISTRY-THERMODYNAMICS-Ex 6.1
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  2. In a certain process, 400J of work is done on a system which gives off...

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  3. During a process, a system abdorbs 710J of heat and does work. The cha...

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  4. During a process, the internal enegry of the system increases by 240kJ...

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  5. Calculate the work donw when1.0 mol of water at 100^(@)C vaporises aga...

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  6. What will be the volume change if 607.8 J of work is done by a system ...

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  7. 500cm^(3) of a sample of an ideal gas is compressed by an average pres...

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  8. Three moles of an ideal gas are expanded isothermally and reversibly a...

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  9. 2.8g of N(2) gas at 300K and 20atm was allowed to expand isothermally ...

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  10. State whther each of the following will increase or decreases the tota...

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  11. Two moles of an idela gas at 2atm and 27^(@)C is compressed isothermal...

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  12. A simple of gas present in a cylinder fitted with a frictionless pisto...

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  13. One mole of an ideal mono-atomic gas at 27^(@)C expands adiabatically ...

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  14. A 5L cylinder contained 10 moles of oxygen gas at 27^(@)C. Due to sudd...

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  15. Adiabatic expenasion of an ideal gas is accompanied by

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  16. For a cyclic process, which of the following is true?

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  17. One mole of a gas is heated at constant pressure to raise its temperat...

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  18. What work is to be done on 2mol of a perfect gas at 27^(@)C it is comp...

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  19. 1mol of an ideal gas undergoes reversible isothermal expansion form an...

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  20. A sample of 2kg of helium (assumed ideal) is taken through the process...

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