JEE Main 2010 Chemistry question
On mixing, heptane and octane form an ideal solution. At 373 K, the vapour pressures of the two liquid components (heptane and octane) are 105kPa and 45kPa respectively. Vapour pressure of the solution obtained by mixing 25.0 g of heptane and 35 g of octane will be (molar mass of heptane = 100 g an dof octane = 114 g ).
Answer: (1)
Solution
Moles: heptane 0.25, octane ; $ = =
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