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36 mL of pure water takes 100 sec to eva...

36 mL of pure water takes 100 sec to evaporate from a vessel and heater connected to an electric source which delivers 806 watt. The `Delta H_("vaporization") of H_(2)O` is: 40.3 kJ/mol, 43,2 kJ/mol, 4.03 kJ/mol, 4.32 kJ/mol

A

40.3 kJ/mol

B

43.2 kJ/mol

C

4.03 kJ/mol

D

4.32 kJ/mol

Text Solution

Verified by Experts

1 wtt = 1 J/sec, Total heat supplied for 36 mL `H _(2)O.`
`= 806 xx 100 = 80600 J, Delta H _( vep) = ( 80600)/( 36) xx 18 = 40300 J or 40. 3 kJ// mol`
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