Ms. Hidalgo opens the door to her classroom. Her classroom is 60 degrees and the air outside is 80. Predict what will happen using your knowledge of how heat flows.

Heat will always flow from High temperature to low temperature

here we know that the temperature inside the room is 60 degree while out side temperature is 80 degree

so the flow of heat is from outside to inside the room as heat flow is always from higher temperature to lower temperature

So after some time due to heat flow from outside the temperature of room will increase

And after long time the temperature of room and outside will be same and heat transfer will become in equilibrium