The following plot shows the potential energy of two Cl atoms as a function of the distance between them. (c) If the Cl₂ molecule is compressed under higher and higher pressure, does the Cl–Cl bond become stronger or weaker?

Video transcript

Hello everyone today. We are being given a diagram from below of a plot of potential energy as a function of the distance between the H and B. Are atoms. It's asking us what would happen to the Hbr bond strength if the HbR molecule is compressed at very high pressure. So if we look at our diagram here we have our inter atomic distance or the distance between these two atoms H. N. B. R. And then we have our potential energy on the y axis. And so the question says that at high pressure what is going to occur? So at high pressure these molecules are going to get condensed, they are going to get closer to each other. So we can say that a high pressure the inter nuclear distance or the I. N. D. Inter nuclear distance will decrease as these two atoms are brought together the space between their nuclei will come together and so the distance will decrease. And so we see on this chart here that as we decrease our inter atomic distance we see that we have a sudden increase in the potential energy. So we can also say that this will result in an increase in our potential energy as a result of an increase in our potential energy and a decrease in the the distance between these two. We will have a weakened bond. So we're gonna have a decreased strength of the bond. So high pressures the inter nuclear distances going to decrease causing an increase in our potential energy which will result in a weaker bond. I hope this helped and until next time.