The temperature in a pot of water rises when the pot is heated due to the transfer of thermal energy from the heat source to the water. This transfer of energy occurs through a process called conduction, where the heat from the pot is transferred to the adjacent water molecules. As the water molecules gain thermal energy, they start moving faster and collide with each other more frequently. These collisions cause the water molecules to vibrate and rotate at a higher rate, resulting in an increase in the average kinetic energy of the water molecules. This increase in kinetic energy is equivalent to an increase in temperature, as temperature is a measure of the average kinetic energy of the molecules in a substance. Therefore, when the pot is heated, it supplies thermal energy to the water, causing the temperature of the water to rise.
