In this cycle, a circulating refrigerant such as Freon enters the compressor as a vapor. From point 1 to point 2, the vapor is compressed at constant entropy and exits the compressor as a vapor at a higher temperature, but still below the vapor pressure at that temperature.
Last Name Meanings and Origins. Uncover the meaning and origin of your last name, then learn how to create and preserve your own family history for generations to come. Nichols Last Name Meaning. 1. English and Dutch: patronymic from Nichol. 2. Jewish (American): Americanized form of any of various like-sounding Jewish names. From: The Oxford Names Companion, Oxford University Press.
What does Brooke mean? B rooke as a girls' name (also used less regularly as boys' name Brooke) is pronounced bruk. It is of Old English and Old German origin, and the meaning of Brooke is water, small stream. Also a surname. Actress Brooke Shields has made the English surname familiar as a girl's given name today.