10 ft3 of air at 300 psia and 400 F is cooled to 140 F at constant volumeby Sky 10 ft 3 of air at 300 psia and 400 F is cooled to 140 F at constant volume. What are the Pf, W, U, Q, H, and S? Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Name * Email * Website Comment * Save my name, email, and website in this browser for the next time I comment.