Theories are usually backed up with a lot of evidence. If the evidence is well studied then it is useful information.
Answer:
288.2 K
Explanation:
= Volumetric expansion coefficient = 
= Initial temperature = 273.1 K
= Final temperature
= Original volume = 150 mL
Change in volume is given by

The temperature of the ethyl alcohol should be 288.2 K to reach 150 mL
Group is a collection of people that are in the same place and share some characteristics. examples are a group of students, a group of engineers and etc. while aggregate is a collection of people that are in the same place but do not share anything in common