An isothermal process means that the temperature of the gas does not change during the expansion or compression. An isobaric process means that the pressure of the gas does not change while in an isovolumetric (isochroic) process the volume remains constant.
The Liberty Bell is an iconic symbol of American independence, located in Philadelphia, Pennsylvania. Formerly placed in the steeple of the Pennsylvania State House (now renamed Independence Hall), the bell today is located in the Liberty Bell Center in Independence National Historical Park.T]he Liberty Bell is the most venerated object in the park, a national icon.
The torch is a symbol of enlightenment. The Statue of Liberty's torch lights the way to freedom showing us the path to Liberty. Even the Statue's official name represents her most important symbol Liberty Enlightening the World. The Statue's current replacement torch, added in 1986, is a copper flame covered in 24K gold.