Question: Can a beaker full of water be placed on a table and steam run through the water in the beaker to boil the water at atmospheric pressure?
Answer: The temperature of steam at normal atmospheric pressure is 100°C. If that steam is run in the beaker, the water will be heated by absorbing the heat released from the steam, and the water in the beaker will reach a temperature of 100°C due to the gradual absorption of heat. Now, as both water and steam rise to 100°C, water will no longer accept heat and steam will no longer reject heat. As a result, the water will remain at 100°C, but will not boil.