The Etymology of Slang Sexual Terms. The word horny sexually excited, lecherous derives from an interesting yet not surprising source. As early as the mid-18th century, an erection was known as a horn or the horn, simply because it looked a bit like one.James Joyce even used the term in his Ulysses.he word horny sexually excited, lecherous derives from an interesting yet not surprising source. As early as the mid-18th century, an erection was known as a horn or the horn, simply because it looked a bit like one.
Charles' Law. Statement. For a fixed mass of gas at constant pressure, the volume is directly proportional to the kelvin temperature. That means, for example, that if you double the kelvin temperature from, say to 300 K to 600 K, at constant pressure, the volume of a fixed mass of the gas will double as well.
As the temperature of the gas increases, the gas molecules will begin to move around more quickly and hit the walls of their container with more forceâthus the volume will increase. Keep in mind that you must use only the Kelvin temperature scale when working with temperature in all gas law formulas! Change in Volume When Temperature Increases. Change in Volume When the Temperature Decreases (Watch the barrel first) NOTE** Charles Law problems must have the PRESSURE CONSTANT.