Rsimi, Nour 2023VVA Chemistry.7b.FA1 An unknown solid substance is heated according to the temperature versus time graph below. Temperature (°C) 70 40 30 20 288 8 2 0 0 5 15 Time (min) 20 00 4 of 5 1 2 3 4 5 25 While the substance is a liquid, at what temperature do the molecules of the substance have the greatest average kinetic energy? 2 % 3 4 5 16 7 8 insert

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