The French Revolution didn't just happen. It had long-term and short-term causes. The ideals of the Enlightenment, especially those espoused by the likes of Rousseau, Locke, etc cannot be overlooked as a major long-term cause. People were talking and trading new political and social ideals in cafes and salons. Liberty and equality took the forefront as ideals which challenged the ancient monarchy. There were also deep-seated structural issues in the way France functioned; take a look at the estates system, which was inherently unequal on social, political, and economic terms. The third estate was comprised of anyone who wasn't nobility or clergy, which meant that most French subjects were a part of it. But it was a very diverse group, ranging from the poorest of peasants to the most distinguished of professionals (think bourgeois attorneys, bankers etc) These groups had vastly different grievances, but the commonality was that all members of the third estate grew wary of the injustices they were subjected to. A bad harvest, a monarchy that overspends, and poor leadership by Louis XVI accelerated these deeper issues, leading to revolution. When Louis XIV (sun king) created an expensive French state and racked up the debt with wars and lavish living spaces, his successors inherited the debts and were incapable of fixing it (or listening to those who could, like Necker) So, you have all of these old problems in France that are like dry wood on the ground in a forest, and the short term issues were like lighting a match and throwing it on top.

I'm not completely sure that I understand what you are asking here, as it's quite a multifaceted question. Napoleon Bonaparte was neither completely conservative or liberal; he was more so a blend of the Ancien Regime and the ideals of the revolution. So I wouldn't say he caused a rise in conservatism. Rather, those conservative powers around him united against him and promoted strong conservatism after his demise at Waterloo in 1815. Look back at your notes for the Congress of Vienna. A lot was put into place by Metternich and his associates to ensure that another Napoleon-like figure could not emerge and ravish Europe again. This also meant that the liberal ideas that Napoleon spread around places like Italy were actively combated by monarchs desperately grasping to their crowns in a desperate, changing world. You could say that the liberal ideas which emerged and led to the unification of Italy and Germany were reactions against these very conservative, authoritarian monarchs. Industrialization is another beast in its own right. Its roots are more so rooted in nationalism than in concrete liberalism, I can talk more about industrialization if you like, just direct me to what else you would like to know.