Problem 4. At McDonald's, 1/4 pounder burgers are cooked in a grill press. This saves time...

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Problem 4. At McDonald's, 1/4 pounder burgers are cooked in a grill press. This saves time by cooking from the top and bottom at the same time. Burgers are grilled immediately after coming out of the refrigerator (initially at 5 C) until medium-well in the center (66 C) on a grill that is at 180 C. Assume the burger has the thermal properties of H20 at the average temperature of (5+66)/2 = 35.5 C. A typical burger diameter is 115 mm. Grill (Top) Burger Grill (Bottom) a) How long does it take to cook the burger? How much heat is transferred to the burger during this time? b) To save time, 1/4 pound big macs are cooked as two separate 1/8 pound burger patties in the grill press. If these two patties are cooked simultaneously, how much time is saved compared to cooking the single patty? Problem 4. At McDonald's, 1/4 pounder burgers are cooked in a grill press. This saves time by cooking from the top and bottom at the same time. Burgers are grilled immediately after coming out of the refrigerator (initially at 5 C) until medium-well in the center (66 C) on a grill that is at 180 C. Assume the burger has the thermal properties of H20 at the average temperature of (5+66)/2 = 35.5 C. A typical burger diameter is 115 mm. Grill (Top) Burger Grill (Bottom) a) How long does it take to cook the burger? How much heat is transferred to the burger during this time? b) To save time, 1/4 pound big macs are cooked as two separate 1/8 pound burger patties in the grill press. If these two patties are cooked simultaneously, how much time is saved compared to cooking the single patty?

Answer rating: 100% (QA)

a To calculate the time it takes to cook the burger and the heat transferred during this time we can ... View the full answer