Question

Figure 6.8 Look at each of the processes, and decide if it is endergonic or exergonic. In each case, does enthalpy increase or decrease, and does entropy increase or decrease?

Short answer

1. Decay of a fertilizer heaps stays an exergonic Process.
2. Advancement of a child from an egg stays an endergonic Process.
3. Disturbance of sand workmanship stays an exergonic process.
4. Moving of a ball from slope to down stays an exergonic process.

Step-by-step solution

Introduction

Exergonic responses are the responses wherein a negative change in the free energy is noticed and free energy is let out of these responses.

Endergonic responses are the responses where a positive change in the free energy is noticed and free energy is consumed rather than getting let out of these responses.

Enthalpy and Entropy

Enthalpy is the all out amount of inward energy and the result of volume and tension. The cycle happening at a steady tension will advance hotness, which is either ingested or delivered. Enthalpy is equivalent to the hotness developed.

Entropy is the proportion of confusion or haphazardness in the framework under a decent piece, volume, energy, pressure, etc. The irregularity is estimated at the infinitesimal level.

Explanation 

The cycles given in the figure can be sorted as exergonic or endergonic as follows:

1. A manure heap decaying is an exergonic cycle as energy is being released. Enthalpy and Entropy expand, due to energy discharge.
2. A chick created from a treated egg needs energy, so this is an endergonic response. Because of the assimilation of energy enthalpy diminishes. Entropy diminishes as large particles are framed from the little atoms.
3. Sand craftsmanship is being annihilated which is an exergonic response. Enthalpy stays steady as there is no adjustment of the all-out energy, yet entropy increments as more modest particles consolidate to shape large atoms.
4. A ball moving down the slope is an exergonic response as it discharges energy and enthalpy diminishes. Yet, there is no adjustment of entropy.