Suppose that 900 W of radiation in a microwave oven is absorbed by 200 g of water in a very lightweight cup.
How long will it take for the water to warm up from 10∘C to 80∘C?
9.
Suppose that 900 W of radiation in a microwave oven is absorbed by 200 g of...
Amicrowave oven heats food by radiating it with microwave radiation. This radiation is absorbed by the food and converted to heat 1st attempt See Hint Jad See Periodic Table Suppose an oven's radiation wavelength is 0.125 m. A container with 250.00 g of water was placed in the oven, and the temperature of the water rose from 20.0°C to 80.0C. How many photons of this microwave radiation were required to heat the water? (Assume that all the energy from the...
5. Microwave ovens emit microwave radiation that is absorbed by water. The absorbed radiation is converted to heat, which cooks the food. One particular oven emits microwaves with a wavelength of 10.8 cm. How many microwave photons are required to heat 150.0 mL of coffee from 20.0°C to 70.0°C? (q = mcpAT; Cwater = 4.18 J/gºC)
Die gnt of 425 nm. 2. A typical microwave oven uses radiation of wavelength 12.2 cm a. How many moles of photons of this radiation are required to raise the temperature of 500.0 mL of water from 25°C to its boiling point? b. A watt (W) is a unit of power the rate at which energy is delivered or consumed (Power (W) = Energy (J)/time (s) or 1 W= 1 J/s. If all the energy of a 700-W microwave oven...
Microwave ovens use microwave radiation to heat food. The microwaves are absorbed by moisture in the food, which is transferred to other components of the food. As the water becomes hotter, so does the food. Suppose that the microwave radiation has a wavelength of 11.2 cm. How many photons are required to heat 200 mL of coffee from 25 C to 63 C?
Microwave ovens heat food by creating microwave electromagnetic radiation that is absorbed by water molecules in the food. Any material that does not have water in it will not absorb the radiation and will not get hot. Metals reflect the microwaves from their surfaces and disrupt the operation of the oven. Some Australians heat water in microwave ovens to make tea. What is the minimum number of microwave photons with a wavelength of 3.17 mm that will have to be...
An ice cube is placed in a microwave oven. Suppose the oven delivers 115 W of power to the ice cube and that it takes 32200 J to melt it. How long does it take for the ice cube to melt?
An ice cube is placed in a microwave oven. Suppose the oven delivers 135 W of power to the ice cube and that it takes 35200 J to melt it. a) How long does it take for the ice cube to melt? (Minutes)
A 553 g portion of soup is heated in a microwave oven from 25°C to 90°C, using radiation with a wavelength of 1.55 × 10⁻² m. Assuming the heat capacity of the soup is the same as water (4.18 J/°C・g), how many photons are absorbed by the soup?
Microwave ovens use microwave radiation to heat food. The microwaves are absorbed by the water molecules in the food, which is transferred to other components of the food. As the water becomes hotter, so does the food. Suppose that the microwave radiation has a wavelength of 12.4 cm . How many photons are required to heat 235 mL of coffee from 25.0 ∘C to 62.0 ∘C? Assume that the coffee has the same density, 0.997 g/mL, and specific heat capacity,...
Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A portion of soup containing 360.406 g of water is heated in a microwave oven from 15.9°C to 85°C, with radiation of wavelength 1.81×10−2m. How many moles of photons are absorbed by the water in the soup?