Internal Definition and 956 Threads

  1. C

    Determine the change in internal energy of boiling water

    Determine the change in internal energy of 1 kg of water at 100 degrees C when it is fully boiled. Once boiled this volume of water changes to 1671 Liters of steam at 100 degrees C Assume the pressure remains constantat 1 atm things i know 1 L =1E-3 m3 1atm = 1.013E5 N/m2 1 L = 1000 cm3 =...
  2. C

    Calc Change in Internal Energy of Boiled Water

    Seem to have ran into a brick wall with this problem Determine the change in internal energy of 1 kg of water at 100 degrees C when it is fully boiled. Once boiled this volume of water changes to 1671 Liters of steam at 100 degrees C Assume the pressure remains constantat 1 atm things i know...
  3. O

    Reflection,Refraction,Total Internal Reflection,Diffraction

    When does each OCCUR? -Please,Simplify your answers as far as possible but be scientific-
  4. W

    Total internal reflection problem.

    If anyone could provide some insight into how I might go about solving this problem it would be greatly appreciated. Q: A ray enters the flat end of a long rectanglular block of glass that has refractive index n_2 as shown in the following figure. Show that all the entering rays can be...
  5. N

    How Does Light Behave at the Critical Angle in an Optical Fiber?

    The drawing shows an optical fiber that consists of a core made of flint glass (nflint = 1.667) surrounded by a cladding made of crown glass (ncrown = 1.523). A beam of light enters the fiber from air at an angle q 1 with respect to the normal. What is q 1 if the light strikes the core-cladding...
  6. K

    Glass is a solid material with an amorphous internal structure.

    "glass" is a solid material with an amorphous internal structure. http://science.nasa.gov/headlines/y2003/14apr_zeroglass.htm So does it imply that if I have 1kg egg shell, and I heat it to 2000 F and cool it immediately before the atoms arrange themselves regularly again, then I can...