What causes convective acceleration in fluid flow?

Melt spinning of polymers involves the forcing of polymer melt through spinnerates (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the ________ fibres?

________ acid is an unsaturated fatty acid?

Molecular diffusion is caused by the________?

Adiabatic flame temperature of a fuel is dependent on the initial temperature of________?

Which is the most efficient and best for measuring very small flow rate of gases?