How much energy in kilojoules is released when 26.5g of ethanol vapor (MM=46.07g/mol) at 93 degrees Celsius is cooled to -10 degrees Celsius. The boiling point of ethanol is 78.3 degrees Celsius. The molar heat capacities of ethanol vapor and liquid ethanol are 65.6K/K. mol and 112.3 J/K. mol respectively

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

Which statement best describes the function of enzymes?

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added