Energy Transfer and Thermodynamics Essay Example | Topics and Well Written Essays - 2000 words

Energy Transfer and Thermodynamics - Essay Example Kelvin = 373.150R C. rise of 30Celsius in Kelvin: Assume increase from 0Celsius to 30Celsius Kelvin = 30 + 273.15 = 303.15 Kelvin Kelvin = 0 + 273.15 = 273.15 =30Kelvin d. rises by 60F in R, K and C Rankine: Assume increase from -60 to 0 F Rankine = Fahrenheit + 459.67 R = -60 + 459.67 = 399.67 R = 0 + 459.67 = 459.67 = 600Rankine Kelvin: Kelvin = (Fahrenheit + 459.67) X (5/9) Kelvin = (-60 + 459.67) X 5/9 = 222.04 Kelvin = (0 + 459.67) X 5/9 = 255.37 = 33.330 Kelvin Celsius: Celsius = (Fahrenheit 32) X (5/9) Celsius = (0 32) X 5/9 = - 17.78 Celsius = (-60 32) X 5/9 = - 51.11 = 33.330C Question.5 Work and equilibrium: Work and equilibrium are related, for example when we consider two systems at equilibrium and some work is done on one of the object and temperature increases then the systems are no longer at equilibrium. Question.6 Equilibrium: hot water in a cup and the cup is at the same temperature as the water Stable state: filling a birth tab with water and yet draining the tab and therefore water will flow in and out and therefore the birth tab system is in a stable state. Uniform state: The universe is said to be uniform according to the second law of thermodynamics Question.7 Rechargeable battery: open, because it exchanges energy and matter with the environment and matter and this is why battery water is required. Household refrigerator: it is closed because it only exchanges energy with the environment but no matter is exchanged. Radiator: open water is added to the system after period of time. Question.8 Difference between a gas, a liquid and a solid In this we use water to explain the difference between gas, liquid and solid, for a solid which is ice molecules vibrate and do not move freely and that ice has a distinct shape, when we melt... This is the second law of thermodynamics that was coined by Clausius and Thomson, entropy is denoted as S and this law states that the entropy of a given system that is not at equilibrium will tend to increase over time, and that at equilibrium maximum entropy is achieved. Work and equilibrium are related, for example when we consider two systems at equilibrium and some work is done on one of the object and temperature increases then the systems are no longer at equilibrium. In this we use water to explain the difference between gas, liquid and solid, for a solid which is ice molecules vibrate and do not move freely and that ice has a distinct shape, when we melt ice we get liquid water and the molecules move freely, liquids do not have a distinct shape and will take the shape of the container. For gases molecules move freely and gases do not have a distinct shape, gases are compressible meaning that their density varies. The two heat convections include natural or free convection whereby fluid motion causes transfer of heat due to changes in density and heat advent convection or forced convection whereby heat transfer is due to movement of the liquid resulting from other forces. A closed Styrofoam cup, whic