It has a definite volume and takes the shape of its container. It has an indefinite volume and takes the shape of its container. It has a definite volume, and its shape is independent of its container. It has an indefinite volume, and its shape is independent of its container.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Propane (C_{3}H_{8}) is a gas at room temperature. Which statement best describes the physical characteristics of a sample of propane at room temperature?
Possibilities:
- It has a definite volume and takes the shape of its container.
- It has an indefinite volume and takes the shape of its container.
- It has a definite volume, and its shape is independent of its container.
- It has an indefinite volume, and its shape is independent of its container.

It has an indefinite volume and takes the shape of its container.