Question: Part 2 - Problem (60 marks) a) You are probably familiar with the frozen Pizza Pockets snacks by McCain that you can buy in

Part 2 - Problem (60 marks) a) You are probably familiar with the frozen Pizza Pockets snacks by McCain that you can buy in any grocery store. In this problem, you have to evaluate the energy required to heat a Pizza Pocket from its initial frozen temperature of -20C to a final temperature of 95C. (50 marks) The following information is to be used: Ingredient Water content (% mass) Freezing Melting Mass point point Crust 30% 103 25 grams 0C Tomato sauce 70%7 60 grams 0C Cheese 60% 0% 15 grams 0C 65C McCain PIZZA POCKETS POCHETTES You can use Siebel's formula: Cpfresh 3.35-a +0.84 [kJ/kg C] Cpfrozen 1.26-a +0.84 [kJ/kg C] Ahatent 334-a [kJ/kg] For full marks, use the methodology shown in class. You may assume that the specific heat of cheese is the same whether it is fresh or melted. b) The cooking instructions on the packaging recommend cooking a Pizza Pocket in the microwave on high setting for 60-90 seconds. If your microwave oven has a power output of 800Watts, how long will it take to heat the Pizza Pocket? Are the cooking instructions adequate? (10 marks)

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