Sunday
April 20, 2014

Homework Help: Chemistry

Posted by Beth on Sunday, August 5, 2012 at 7:37pm.

One kilogram of dry air at STP conditions is exposed to 1.00 R of X-rays. One roentgen is defined by Equation 32.1 in Section 32.1. An equivalent definition can be based on the fact that an exposure of one roentgen deposits 8.30 x 10-3 J of energy per kilogram of dry air. Using the two definitions and assuming that all ions produced are singly charged, determine the average energy (in eV) needed to produce one ion in air.

So I understand that I need to use the equation E=q/m but I dont know how to get it into MeV. Help Please?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - One kilogram of dry air at STP conditions is exposed to 1.00 R of X-...
chemistry - 146 mL of wet H2 gas is collected over water at 29.0 degrees celsius...
Chemistry - How would I go about doing this problem? 146 mL of wet H2 gas is ...
Chemistry - On a warm summer day in Athens, the temperature is 33C (dry bulb ...
Physics - An equivalent definition can be based on the fact that an exposure of ...
Chemistry - A student adds 4.00g dry ice(Co2(s)) to an empty balloon after the ...
Chemistry - Dry air (0% humidity) is approximately 78% N2, 21% O2, and 1% Ar by ...
chemistry - i reallly need help with combining the gas laws. here are a few ...
chemistry HELP!! - How would I find the STP for N2,He, H2O? (concentration in ...
ecology - An air conditioner lowers the temperature of the surrounding air. ...

Search
Members