I can provide some general information on the topic.
In most jurisdictions, the speed limit is a legally enforced regulation that applies regardless of the traffic conditions. Even if the freeway is empty, you may still be required to abide by the posted speed limit. Speed limits are set for various reasons, including ensuring safety, controlling traffic flow, and reducing the risk of accidents.
While it may seem tempting to drive faster when the road is clear, it's important to consider that speed limits are established based on factors such as road design, visibility, potential hazards, and other safety considerations. Exceeding the speed limit significantly increases the risk of accidents and reduces the driver's ability to react to unexpected situations.
That being said, laws and regulations regarding speed limits can vary depending on the jurisdiction. It's essential to familiarize yourself with the specific laws and regulations in your area and follow them accordingly to ensure both your safety and compliance with the law.