If you turn on a gas oven without putting any food in it, the oven will start heating up as per the temperature setting you've chosen. However, since there is no food present, the oven will continue to heat up without any purpose.
This can have a few potential consequences:
Energy waste: Running the oven without any food will waste energy, as the oven will continue to consume gas or electricity to maintain the desired temperature. This can lead to higher utility bills.
Overheating: If the oven is left on for an extended period without any food inside, it may reach excessive temperatures. This can potentially damage the oven or its components, and in some cases, it may even pose a fire hazard.
Uneven heating: Without any food to absorb and distribute the heat, the oven may experience uneven heating. This can result in hotspots or fluctuations in temperature within the oven cavity, which may affect its performance when cooking in the future.
It is always advisable to place food in the oven before turning it on to ensure safe and efficient cooking.