A gas has a volume of 15 L, a temperature of 300 K, and an unknown initial pressure.
Then, the gas expands to 30 L, remains at
300 K, and has a pressure of 300 kPa. What
was the initial pressure of the gas?

with the invention of the automobile, the woman of the house could drive to the store and get groceries. women were also free to socialize more. during world war ii women were allowed to work in factories to the war effort and could drive to work or ride mass transit buses to their jobs.

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.