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.
International vs. Domestic Flights. Generally speaking, you must arrive at the airport one hour in advance of domestic flights and two hours in advance of international flights. What you should keep in mind, however, is that unless the international portion of your travel is nonstop from your origin city, you need only follow domestic flight guidelines.