Classify each of the following as exothermic or endothermic:
b. In the body, the synthesis of proteins requires energy.

Question

Classify each of the following as exothermic or endothermic:

b. In the body, the synthesis of proteins requires energy.

Accepted Answer

Welcome back. Everyone is the following endothermic or exothermic solid. Iodine sublimes to a purple vapor which is iodine gas. So to show that reaction, we've got iodine which is I sub two and it is solid and it is going to sublime to form iodine gas. So we would have is sub two gas as our product. Let's begin by differentiating an endothermic reaction from an exothermic reaction beginning with an endothermic reaction. Recall that in that sort of reaction, we've got energy which is gained by the reaction and that results from bonds breaking and the energy from those bonds followed by the absorption of heat, which leads to an increase in energy gains by the system being the reaction and thus a decrease in temperature of the surroundings. And let's recall that entropy change for an endothermic reaction is going to be positive. Now, on the other hand, for an exothermic reaction, we're going to recall that energy is going to be lost by the system because what occurs is that we've got bonds which are formed heat is released, correlating to that loss of energy and then an increase in the temperature of the surroundings. And recall that the entropy change for an exothermic reaction is going to be negative. So in order for iodine in solid form to become iodine and gaseous form, we must place a triangle over our reaction arrow to indicate that heat is going to be added where heat being added to the reaction allows for an increase in energy of the reaction. Because the bonds between the iodine atoms are going to break to move as energy back into the individual atoms of iodine. So the energy from that bond is supplied to the atoms making up the reaction. And thus that energy being absorbed by the atoms by that broken bond correlates to a decrease in the surrounding temperature. And so it is important for that bond to break from iodine in its solid form in order to create the gaseous molecules of iodine that are far from one another. And recall that the process that we are describing is the sublimation of solid iodine into its gaseous form. Since solid iodine absorbs heat from broken bonds, we can say that therefore, the reaction is going to be endothermic and correlate to a positive enthalpy change. So our final answer is going to be that the reaction is endothermic when solid iodine sublimes to form iodine gas, I hope this helped and let us know if you have any questions

Classify each of the following as exothermic or endothermic:
b. In the body, the synthesis of proteins requires energy.

Verified video answer for a similar problem:

Key Concepts

Exothermic Reactions

Endothermic Reactions

Protein Synthesis

Classify each of the following as exothermic or endothermic:b. In the body, the synthesis of proteins requires energy.

Verified video answer for a similar problem:

Key Concepts

Exothermic Reactions

Endothermic Reactions

Protein Synthesis

Classify each of the following as exothermic or endothermic:
b. In the body, the synthesis of proteins requires energy.