chemistry

We encounter a large number of waves every day without realizing it. One such source is radio waves. A typical frequency for radio transmission is 680 kHz. How much energy does one mole of radio waves carry? X rays used by doctors to view bones are much more energetic than radio waves. Determine the energy of one mole of X ray photons (3.8 x 1017 Hz).

  1. 👍 0
  2. 👎 0
  3. 👁 111
asked by Maria
  1. E for one atom = h*frequency.
    Multiply by 6.022E23 to determine E in a mole. Both parts are done the same way

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    Three sources of sound are distributed along a line, as shown in the figure. v is the speed of sound. Source A is at rest, and it emits sound waves with a frequency of 480 Hz. Source B is traveling at v/5 to the right, and it

    asked by Ben on September 3, 2013
  2. physics

    An acoustic burglar alarm consists of a source emitting waves of frequency 28.0 kHz. What is the beat frequency between the source waves and the waves reflected from an intruder walking at an average speed of 0.095 m/s directly

    asked by onon on September 27, 2014
  3. physic

    The waves emitted from a source A is given by y1 = 6 sin π(20t – 0.5x) where y1, x and t are expressed in units of meter and seconds. (a) Determine the wavelength and the frequency of the radio waves. At the same time, source B

    asked by niti on September 5, 2012
  4. physic

    A source of sound emits waves at a frequency 650 Hz. An observer is located at a distance 190 m from the source. Use m/s for the speed of sound. (a) Assume completely still air. How many wavefronts (full waves) are there between

    asked by juanpro on December 6, 2013
  5. physics

    1. If the period of a wave is 0.27s, how many waves would pass by in 1.0 minute? 2. When a wave from of light passes through an opening that's large compared to its wavelength, it: a) behaves as a single new point source b)

    asked by Liz on July 28, 2014
  6. optics

    I want to substitude the ray optics analysis with what are the resultant waves that happen. I say "resultant" because many waves that would exist if they were alone, as they are not alone, after their superposition with the other

    asked by Theodore on May 13, 2011
  7. physics(URGENT!!!!!)

    A source of sound emits waves at a frequency f= 650 Hz. An observer is located at a distance d= 170 m from the source. Use u=340 m/s for the speed of sound. (a) Assume completely still air. How many wavefronts (full waves) N are

    asked by Anonimus on December 8, 2013
  8. physics

    An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal

    asked by maria on October 24, 2011
  9. physics

    An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal

    asked by fiko on October 24, 2011
  10. physics

    An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal

    asked by maria on October 24, 2011

More Similar Questions