If you want a high-tech, presbyopia-correcting intraocular lens for your cataract procedure, then costs would increase to an average of about $4,591 per eye (vs. $4,461 in 2010, $4,337 in 2011, $4,269 in 2012 and $4,350 in 2013).
When Î´S is negative and Î´H is negative, the relative magnitudes of Î´S and Î´H determine if the reaction is spontaneous. Low temperatures make the reaction more favorable. When Î´S is negative and Î´H is positive, a process is not spontaneous at any temperature, but the reverse process is spontaneous.A spontaneous process is the time-evolution of a system in which it releases free energy (usually as heat) and moves to a lower, more thermodynamically stable energy state. spontaneous process is capable of proceeding in a given direction, as written or described, without needing to be driven by an outside source of energy.
adj. 1. Happening or arising without apparent external cause; self-generated: a microorganism capable of spontaneous movement. 2. Arising from a natural inclination or impulse and not from forethought or prompting: spontaneous laughter; a spontaneous protest.3. Unconstrained and unstudied in manner or behavior: a spontaneous personality. 4. Growing without cultivation or human labor: spontaneous vegetation.rising from a natural inclination or impulse and not from forethought or prompting: spontaneous laughter; a spontaneous protest. 3. Unconstrained and unstudied in manner or behavior: a spontaneous personality. 4. Growing without cultivation or human labor: spontaneous vegetation.