Final answer:
It is false that Julia can cook the crust and the filling at the same time in a microwave. Different components usually require separate cooking due to varying moisture content and density. Moreover, not all containers are suitable for microwave use and may not withstand the heat required for cooking both at once.
Step-by-step explanation:
The question pertains to whether Julia can cook the crust and the filling at the same time in a microwave. The answer to this is that it is False. Microwaves cook food by agitating water molecules with microwave radiation, which generates heat. Cooking both the crust and the filling at the same time can be challenging because they may have different moisture content and density, leading to uneven cooking. It is usually recommended to cook different components separately to achieve the desired texture and doneness for each.
Moreover, the reference to microwaveable ware suggests that not all containers are suitable for microwaving. Items such as yogurt containers and margarine tubs may not be designed to withstand the temperatures reached during microwaving, especially when trying to cook something with multiple components like a pie with crust and filling. The specific Tm value (melting point) given, 173, likely represents a temperature in degrees Celsius that certain plastics can withstand, but this still indicates caution should be taken when microwaving to prevent container warping or melting.