#### Question

What is meant by positive and negative deviations from Raoult's law and how is the sign of Δ_{sol}*H* related to positive and negative deviations from Raoult's law?

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#### Related Questions VIEW ALL [5]

Vapour pressure of pure acetone and chloroform at 328 K are 741.8 mm Hg and 632.8 mm Hg respectively. Assuming that they form ideal solution over the entire range of composition, plot *p*_{total}’*p*_{chloroform}’ and *p*_{acetone} as a function of *x*_{acetone}. The experimental data observed for different compositions of mixture is.

100 ×x_{acetone} |
0 | 11.8 | 23.4 | 36.0 | 50.8 | 58.2 | 64.5 | 72.1 |

p_{acetone }/mm Hg |
0 | 54.9 | 110.1 | 202.4 | 322.7 | 405.9 | 454.1 | 521.1 |

p_{chloroform}/mm Hg |
632.8 | 548.1 | 469.4 | 359.7 | 257.7 | 193.6 | 161.2 | 120.7 |

#### Reference Material

Solution for question: What is meant by positive and negative deviations from Raoult's law and how is the sign of ΔsolH related to positive and negative deviations from Raoult's law? concept: Vapour Pressure of Liquid Solutions - Vapour Pressure of Liquid- Liquid Solutions. For the courses CBSE (Arts), CBSE (Commerce), CBSE (Science), PUC Karnataka Science