Which best explains why infrared waves are ineffective for treating cancer?
a)they have frequencies that are too high to kill cancer cells.
b)they have short wavelengths, which can be harmful to healthy cells.
c)they do not transfer enough energy to destroy cancer cells.
d)they have long wavelengths, which can be harmful to healthy cells.

What produces wave a)sound b) heats c)transfer of energy d)vibrations

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.

Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.