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The dissolution of 1 mol e of NaOH((s)) ...

The dissolution of `1 mol e` of `NaOH_((s))` in `100 mol e` of `H_(2)O_((l))` give rise to evolution of heat equal to `-42.34kJ` . However if `1 mol e` of `NaOH_((s))` is dissolved in `1000 mol e `of `H_(2)O_((l))`, the heat given out is `42.76kJ`. What would be enthalpy change when 900 mole of `H_(2)O_((l))` are added to a solution containing 1 mole of `NaOH_((s))` in 100 mole of `H_(2)O` ?

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The correct Answer is:
`-0.42kJ;`
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P BAHADUR-THERMOCHEMISTRY-Exercise 9 Advance numerical problems
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  2. A monobasic acid is dissociated to 25% in 0.1N solution. When 100mL of...

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  3. The dissolution of 1 mol e of NaOH((s)) in 100 mol e of H(2)O((l)) giv...

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  4. The integral enthalpy of solution in kJ of one mole of H(2)SO(4) disso...

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  5. The heat of solution of NH(4)NO(3) in water was determined by measuri...

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  6. An athelet takes 20 breaths per minute at room temperature. The air in...

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  7. A slice of banana weighing 2.502 g was burnt in a bomb calorimeter pro...

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  8. A person inhales 640g of O(20 per day. If all the O(2) is used for co...

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  9. The heat of formation of carbon dioxide from graphite at 15^(@)C and c...

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  10. When 12.0g of carbon reacted with oxygen to form CO and CO(2) at 25^(@...

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  11. The heat of combustion of ethane gas is 368 kcal //mol. Assuming that ...

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  12. The commercial production of water gas utilizes the reaction under sta...

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  13. From the following data of DeltaH, of the following reaction, C((s))...

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  14. When 100 c.c. of a mixture of methane (CH(4)) and ethylene (C(2)H(4)) ...

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  15. 1.0g magnesium atoms in vapour phase absorbs 50.0kJ of energy to conv...

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  16. Calculate the enthalpy change when 6.80g of NH(3) is passed over heate...

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  17. 1.00litre sample of a mixture of CH(4(g)) and O(2(g)) measured at 25^(...

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  18. The standard enthalpy of formation of FeO and Fe(2)O(3) is -65kcal mol...

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  19. When 120mg of naphthalene C(10)H(8(s)) was burnt in a bomb calorimeter...

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  20. The heat of dissociation of H(20 is 435kJ mol^(-1). If C((s)) rarr C((...

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