Question 1: 150.0 grams of a sample was heat up from solid state to gas state using a 1200 W of burner. The heating curve is shown below. Answer the questions. Temperature Versus Time for a Sample A. What it the melting point of the sample? (K:1) 200 180 160 180 120 B. What is the boiling point of sample? (K:1) 100 Temperature ( C) @ C. State the phases in each section. (C:5) 1 2 3 4 6 67 8 9 1W0M12131415186 Time (min) D. Determine the sections that is referred to the following: (K:5) E. Use the diagram to determine the specific heat of this substance in liquid form. 1:3) F. Use the diagram to determine the latent heat of fusion. (I:2) Question 2: Quencing, used in metal working, is a process that rapidly cools a metal 1n a short time. A 1.50xX103 grams of metal with specific heat of 1050 J/kgC has an initial temperature of 450C was quickly submerged into a cool barrel of water that has a volume of 10.0 LL (i.e. 10.0 kg) that is at a temperature of 11.5C. Determine the final temperature of the metal-water system. (A:4) Question 3: A car has an engine with power of 180 hp (hp: horsepower) was able to increase the speed of a 1560 kg car from rest to a speed of 60 km/hr in 7.0 seconds. Determine the efficiency of this car engine. 1 hp = 746 W. (I:2, A:2) Question 4: A blast chiller has a rating of 2000 W. A chef who is making a 2.0 L of strawberry sorbet at a temperature of 15.0C would like to cool it to 10.0C. how long (in mins) should the chef put his sorbet in the blast chiller? Specific heat of liquid sorbet: 3890 J/kgC, Specific heat of solid sorbet: 2150 J/kgC the heat of fusion of sorbet is 230 kd/kg. (A:2, C:2)