Question

1)explain the process of fractional distillation? 2) list some criteria for an ideal fuels?3) how does the foetus get nourishment​

Answer 1

Answer:

• Fractional distillation is the separation of a mixture into its component parts, or fractions. Chemical compounds are separated by heating them to a temperature at which one or more fractions of the mixture will vaporize. It uses distillation to fractionate.
• The Characteristics of an ideal fuel are discussed as follows:

1. The fuel should have high calorific value.
2. The fuel should have proper ignition temperature.

The rate of combustion should be balanced and moderate.The content of non-volatile substances should be as low as possible.

Explanation:

• Through the blood vessels in the umbilical cord, the fetus receives all the necessary nutrition, oxygen, and life support from the mother through the placenta. Waste products and carbon dioxide from the fetus are sent back through the umbilical cord and placenta to the mother's circulation to be eliminated.

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