A solution is made by mixing of heptane and of benzene . Calculate the mole fraction of heptane in this solution. Round your answer to significant digits.

The question is incomplete, the complete question is found in the image attached to this answer.

0.3

Explanation:

Molar mass of benzene = 78 g/mol

Molar mass of heptane = 100 g/mol

number of moles of heptane = 59 g/100 g/mol = 0.59 moles

number of moles of benzene = 103 g/78 g/mol = 1.32 moles

Total number of moles = 0.59 + 1.32 = 1.91 moles

Mole fraction of heptane = 0.59/1.91 = 0.31

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.

your answer is c) plasma

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