Which best describes the process of heat transfer that allows a hot air balloon to fly? A.
Convection, because the air inside the balloon is heated and as the hot air rises, so does the balloon.

B.
Conduction, because the air inside the balloon is cooled when it is enclosed, causing the balloon to rise.

C.
Convection, because the air inside the balloon is condensed and as the cool air circulates, the balloon rises.

D.
Conduction, because the air inside the balloon is warmed, and when it comes in contact with the sides of the balloon, the balloon rises.

Which of the following would not diffuse through the plasma membrane by means of simple diffusion? 1 oxygen 2 glucose 3 a steroid hormone 4 a lipid soluble vitamin

Arectangle has a diagonal 20 inches long that forms angles of 60 and 30 with the sides. find the perimeter of the rectangle. for geometry

Steam reforming of methane ( ch4) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. an industrial chemist studying this reaction fills a 1.5 l flask with 3.5 atm of methane gas and 1.3 atm of water vapor at 43.0°c. he then raises the temperature, and when the mixture has come to equilibrium measures the partial pressure of carbon monoxide gas to be 1 .0 atm. calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. round your answer to 2 significant digits.