What are close-toed shoes least likely to provide protection against?

Gases produced during a reaction.

Explanation:

Closed-toes are suitable as protective equipment for laboratory personnel. The closed shoe provides protection to the feet and prevents any substance from promoting a physical danger to the skin of the feet and the health of the professional. These shoes prevent your feet from contacting hot water, broken glass and even acid. However, these shoes do not provide protection against gases, gases can enter permeable closed shoes and cause damage to the professional's feet. For this reason, it is ideal for laboratory workers to wear waterproof closed shoes.

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.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.