Time from start of journey (h) b) How much gas was ir te tank at the stai the journey? Was the tank full at this time? Explain. 0. An oven is turned on at a room temperature of 20C and it takes 10 min to reach a temperature of 190C. A tray of cookies is placed in the oven to bake for 10 min. The oven is then turned off and returns to room temperature after 15 min. Sketch a graph of temperature as a function of time. Label each section of the graph and explain what it represents.