Final answer:
The amount of dry ice required to transport frozen plasma may be approximately 4 kg (7-10 lb) per day, but this can vary based on specific shipment conditions. Dry ice sublimes and is used as a coolant due to its cold temperature of -78°C. Safety and proper ventilation are imperative when using dry ice.
Step-by-step explanation:
The amount of dry ice required for transporting frozen plasma can vary depending on several factors, including the duration of transport and the insulating properties of the container. Since dry ice sublimates, that is it transitions from solid to gas at atmospheric pressure, and given that it is extremely cold at -78°C, it serves as an effective coolant for medical supplies that need to be kept at low temperatures.
In general experiences, around 4 kg (7-10 lb) of a substance like dry ice might be used per day in cooling applications. However, this might vary if you are adding any warm items to the shipment, which would require additional dry ice. The details such as the specific amount of heat transfer required for liquid nitrogen, as mentioned in other transport cooling contexts, are not directly applicable to dry ice, but illustrate the concept of calculating cooling needs based on specific substances' properties (density, specific heat capacity, and ambient temperature).
It is crucial when using dry ice to ensure that the space is properly ventilated, as the gas can displace oxygen. Additionally, appropriate safety measures should be taken when handling dry ice due to its extremely low temperature.