The molar heat capacity is the heat capacity per unit amount (SI unit: mole) of a pure substance and the specific heat capacity, often simply called specific heat, is the heat capacity per unit mass of a material.
Long TSA lines this summer. The TSA is expecting long lines at their security check points during the busy summer travel season â especially when youâre traveling in the morning. The TSA recommends arriving at the airport at least 2 hours early for domestic travel and 3 hours early for international travel.
Check-in is available from 1 to 30 hours prior to scheduled departure of domestic flights. For international flights, the service is available from 4 to 24 hours prior to departure. Check-in online and print your boarding pass or obtain a voucher to be exchanged for your boarding pass at the airport.