I have a problem with chapter 12.1 (Gases) question 4b (page 211) of AQA Physics A book.
I can't seem to solve the question by either using ratio or Boyle's Law.
Here is the question:
A Hand pump was used to raise the pressure of the air in a flask of volume 1.2x10^-4 m^3, without and then with powder in the flask.
- Without the powder in the flask, the pressure increased from 100kPa to 135kPa.
- With 0.038kg of powder in the flask, the pressure increased from 110kPa to 141kPa.
a) Show that the volume of air in the hand pump initially was 2.7x10^-5 m^3
b) Calculate the volume and the density of the powder.
The book answer for b) is 2.3x10^-5 m^-3, 1600 kg m^-3
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- Thread Starter
- 01-04-2011 12:34
- 16-06-2011 23:43