Byrdsfan1948 degrees Kelvin and therefore no question as to C or F or any other unit??
Al, for what its worth, I have never seen air (ambient) temperature referred to in Kelvins instead of Centigrade :-). Can you imagine the weatherman saying "today's high will be at 297º Kelvin!"
But you are the Mechanical Engineer who knows thermodynamics, and I am just an EE. I had skipped the required thermodynamics class by substituting with a nuclear engineering class instead.
By the way Al, your alma mater beat out Stanford again in this year's ranking of U.S. graduate engineering schools. 1 and 2, as usual, yeehaw.
To my surprise, my undergrad school Purdue has popped up all the way to number 4 now, tied with CMU. Bezerkeley came in as No. 3. Purdue had in the past struggled to get into the top ten, even though they had the country's first official Computer Science department at the time when everyone else had lumped that field in their Math department.