What physical state are both natural gas and propane in at room temperature?

Natural gas and propane are both in the gaseous state at room temperature. This means they exist as gases under normal atmospheric pressure and temperature conditions typically found in homes and environments.

Natural gas primarily consists of methane, while propane is a separate compound but also a hydrocarbon. In their application for heating, cooking, or powering appliances, both gases are stored under pressure in liquid form but revert to their gaseous state when released from the container.

The gaseous state of natural gas and propane allows them to efficiently mix with air for combustion, which is essential for their use in providing heat and energy. Understanding the physical state of these fuels is crucial for safe handling, storage, and usage in various applications.