That will vary depending on the individual stove.
convection
If the soup is already cook and you just want to heat it on a stove, first put the soup in a cookware, put it in a stove then turn on the stove into medium heat and it is ok if you don't put the cover of the cookware anymore to avoid spillover or spillage. If boiled then you're done. Don't forget to turnoff the stove together with the gastank.
325 degrees should be right in the ball park.
through radiation
The predominant heat transfer mechanism used to transfer heat from the pan to the stove burner is radiation.
conduction
convection
it is conduction
yUr Gramerr suKcz
To cook on a two-burner gas stove start cooking on high heat over one burner and simultaneously turn on a second, empty, burner to a lower temperature.This will help you to cook different types of food and avoid them burning the food.
thermal
a stove top is attached to the top of the oven.. the heat goes through. therefore it gets hot.