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.
The airlines have a cut-off time of 30 minutes prior to flight time in order to check in (we almost missd it once). To be safe, for domestic flights, we arrive at the airport between 1 hour to 1.5 hours prior flight time, which gives enough time to check in, and get through security lines. For an international flight, I would arrive 2 hours before flight time.