A hot air balloon lifts off from the ground. Before the launch the balloon has a volume of 200 L and the pressure in the balloon is 1.4 atm. When the balloon reaches its final altitude the volume has increased to 400 L . What is the pressure inside the balloon now?

When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.

Which three statements represent the benefits of performing experiments using computer simulations?

Which change to the system wood cause the freely-moving piston to lower?