On mixing heptane and octane form an ideal solution. At 373 K, the vapour pressure of the…
Chemistry · NEET · NTA Exams — Solutions
On mixing heptane and octane form an ideal solution. At 373 K, the vapour pressure of the two liquid components (heptane and octane) are 105 kPa and 45 Kpa respectively. Vapour pressure of the solution obtained by mixing 25 g of heptane and 35 g of octane will be: (molar mass of heptane = 100g mol-1 and of octane = 114 g mol-1)
- 72.0 kPa
- 36.1 kPa
- 96.2 kPa
- 144.5 kPa
Answer
(A) 72.0 kPa
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