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Evaporation of water is...

Evaporation of water is

A

An endothermic change

B

An exothermic change

C

A process where no heat change occurs

D

A process accompanied by chemical reaction

Text Solution

Verified by Experts

The correct Answer is:
A

Change of liquid to vapour takes energy in the form of heat so it is endothermic reaction.
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ERRORLESS -THERMODYNAMICS AND THERMOCHEMISTRY -ORDINARY THINKING (Objective Questions) Heat of reaction
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  5. For the allotropic change represented by equation C(diamond) rarr C(gr...

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  6. The enthalpy change DeltaH for the neutralisation fo 1M HCI by caustic...

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  7. A reaction that takes place with the absorption of energy is

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  8. A solution of 500 ml of 0.2 M KOH and 500ml of 0.2 M HCl is mixed and ...

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  9. In which of the following reaction does the heat change represent the ...

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  10. The heat of formations of CO((g)) and CO(2(g)) are -26.4 kcal and -94....

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  11. In the complete combustion of butanol C(4)H(9)OH(l), if Delta H is ent...

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  12. The heat of combustion of CH(4)(g), C (graphite), H(2)(g) are 20kcal, ...

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  13. Calculate DeltaH^(@) for the reaction Na(2)O(g)+SO(3)(g)toNa(2)SO(4)...

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  14. When a strong acid, strong base or their salt are dissolved in water, ...

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  16. Which compound will absorb the maximum amount of heat when dissolved i...

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  17. In the reaction C+2SrarrCS(2)+DeltaH, DeltaH is the

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  18. The following thermochemical reactions are given : M+(1)/(2)O(2)to M...

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  19. A cylinder of gas is assumed to contain 11.2 kg of butane (C(4)H(10))....

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  20. Thermodynamically the most stable form of carbon is

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