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Are these statements about the specific heat true? Statement 1: Specific heat of ice is double the specific heat of water. Statement 2: Specific heat of foods decreases during freezing.

Are these statements about the specific heat true? Statement 1: Specific heat of ice is double the specific heat of water. Statement 2: Specific heat of foods decreases during freezing. Correct Answer False, True

Specific heat of ice is 2.1 kJ/kg K and specific heat of water. 4.218 kJ/kg K. Therefore the specific heat of ice is half of the specific heat of water. Specific heat of foods decreases during freezing as there is a continuous phase change from water to ice.

Related Questions

It is desired to freeze 10,000 loaves of bread each weighing 0.75 kg from an initial room temperature of 18°C to a final temperature of -18°C. The bread-freezing operation is to be carried out in an air-blast freezing tunnel. It is found that the fan motors are rated at a total of 80 horsepower and measurements suggest that they are operating at around 90% of their rating, under which conditions their manufacturer’s data claims a motor efficiency of 86%. If 1 ton of refrigeration is 3.52 kW, estimate the maximum refrigeration load imposed by this freezing installation assuming that fans and motors are all within the freezing tunnel insulation and the heat-loss rate from the tunnel to the ambient air has been found to be 6.3 kW. Extraction rate from freezing bread (maximum) = 104 kW
S1: Frozen foods are so popular today that many people wonder how they ever lived without them.
P: Near the North Pole, where the ground stays frozen all the year around, there is no problem of preserving foods.
Q: Actually, people who live in cool climates have had frozen foods for a long time.
R: Ice helped them when they could get it, but they couldn't get it very often.
S: But people who live in warm climates have not always been able to keep food fresh.
S6: Now refrigerators and deep freezers preserve many foods that could not be kept any other way.

The Proper sequence should be:
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