For many purposes we can treat propane

c3h8 as an ideal gas at temperatures above its boiling point of

−42.°c suppose the temperature of a sample of propane gas is raised from

27.0°c to 42.0°c, and at the same time the pressure is decreased by

5.0%

does the volume of the sample increase, decrease, or stay the same? increase
decrease
stays the same
if you said the volume increases or decreases, calculate the percentage change in the volume. round your answer to the nearest percent.
%

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.

Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore

Name the intersection of plane bpq and plane cpq.