D) diethyl ether, CHOH:-O-CH CH, E) ethy lene glycol. HO-CH--CH-OH 34.5 C 40. Gi

Question

D) diethyl ether, CHOH:-O-CH CH, E) ethy lene glycol. HO-CH--CH-OH 34.5 C 40. Given the graph below, whas is the boiling poimt of chlorofonm at standard pressune CHCh CCle A) 77°C B) 34°C C) 98°C D) 60°C E) The graph does not give that information. Which one of the following decreases as the strength of the attractive intermolecular forces increases? A) the heat of vaporization B) the normal boiling temperature C) the extent of deviations from the ideal gas law D) the sublimation temperature of a solid E) the vapor pressure of a liquid 41 41.

Explanation / Answer

40.option D boiling point of choloform (CHCl3) = 60 { the boiling temperature of any liquid when Vapour pressure become equal to atmospheic pressure }

41.Option E , intermolecular forces increase the boiling point increases and hence the vapor pressure decreases.

42. option B . 456 torr { ln P2/17.5 torr( pressure at 293 k) = 40700 (h vap) / 8.3145 ( R =universal gas cont.) (1/293 - 1/331) }

43. option B .

44.option B 760 torr ( 1atm)

45. option A .

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