Assuming that radiation with a wavelength = 15.0 cm is used, that all the energy is converted to heat, and that 4.184 J is needed to raise the temperature of 1.00 g of water by 1.00 degree celcius, how many photons are necessary to raise the temperature o
Homework Answers
(h c/L)*N = 1.025*10^5 J
Solve for N.
L is the wavelength in meters
c = 3*10^8 m/s
h = Planck's constant
Add Answer to:
Assuming that radiation with a wavelength = 15.0 cm is used, that all the energy is converted to heat, and that 4.184 J is needed to raise the temperature of 1.00 g of water by 1.00 degree celcius, how many photons are necessary to raise the temperature o
Assuming that radiation with λ=15.0 cm is used, that all the energy is converted to heat,...
Assuming that radiation with λ=15.0 cm is used, that all the energy is converted to heat, and that 4.184 J is needed to raise the temperature of 1.00 g of water by 1.00 ∘C, how many photons are necessary to raise the temperature of a 250 mL cup of water from 20 ∘C to 95 ∘C? Express your answer using
Suppose that the microwave radiation has a wavelength of 10.8 cm. How many photons are required...
Suppose that the microwave radiation has a wavelength of 10.8 cm. How many photons are required to heat 205 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, 4.184 J/( 8K), as water over this temperature range. Express the number of photons numerically. View Available Hint(s) o A¢ ROO? photons Suppose that 23 g of each of the following substances is initially at 29.0°C. What is the...
Microwave ovens use microwave radiation to heat food. The microwaves are absorbed by the water molecules...
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,...
Microwave ovens use microwave radiation to heat food. The microwaves are absorbed by the water molecules...
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. Part A Suppose that the microwave radiation has a wavelength of 12.4 cm. How many photons are required to heat 285 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...
Die gnt of 425 nm. 2. A typical microwave oven uses radiation of wavelength 12.2 cm...
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...
4. Determine how many calories of heat are needed to raise the temperature of 250. mL...
4. Determine how many calories of heat are needed to raise the temperature of 250. mL of water from 25°C to 45°C. Specific heat (C) of H2O is 1.00 calorie/g°C. q=C x mass x At. 4 SC -29 250
water has a specific heat of 4.184J/g degree C. How many kJ of energy are required...
water has a specific heat of 4.184J/g degree C. How many kJ of energy are required to raise the temperature of0. 453kg of water from 21.0 degree C to 37.0 degree C?
Part A If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the temperature of 55...
Part A If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the temperature of 55 g of methanol from 1 °C to 92 °C?
please please answer all question 17. How many JOULES of energy are needed to warm 4.37...
please please answer all question
17. How many JOULES of energy are needed to warm 4.37 g of silver (Ag) from 25.0 c to 27.5 C? The specific heat of silver is 0.24c a. 0.14J b. 2.6 c. 46 J d. 0.022 18. Given the table below of specific heat capacities, which one will experience the SMALLEST increase in temperature if 10.0 J of heat is added to 1.00 g of each of these substances? Water Cast iron Lead (Pb)...
How much heat is required to raise the temperature of L5x 10 g of water from 45°F to 130.°F?...
3How much heat is required to raise the temperature of 1.5x 103 g of water from 45°F to 130.°F? The specific heat of water is 4.184 J/g °C. 3.0x101 kJ 5.3x102 kJ 3.0x102 kJ 3.4x102 kJ 8.2x102 kJ6When 0.7521 g of benzoic acid was burned in a calorimeter containing 1,000. g of water, a temperature rise of 3.60°C was observed. What is the heat capacity of the bomb calorimeter, excluding the water? The heat of combustion of benzoic acid is -26.42 kJ/g. 15.87 kJ/℃ 752.1 kJ/C 1.34 kJ/°C 5.52...
Suppose that the microwave radiation has a wavelength of 10.8 cm. How many photons are required to heat 205 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, 4.184 J/( 8K), as water over this temperature range. Express the number of photons numerically. View Available Hint(s) o A¢ ROO? photons Suppose that 23 g of each of the following substances is initially at 29.0°C. What is the...
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. Part A Suppose that the microwave radiation has a wavelength of 12.4 cm. How many photons are required to heat 285 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...
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...
4. Determine how many calories of heat are needed to raise the temperature of 250. mL of water from 25°C to 45°C. Specific heat (C) of H2O is 1.00 calorie/g°C. q=C x mass x At. 4 SC -29 250
Part A If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the temperature of 55 g of methanol from 1 °C to 92 °C?
please please answer all question
17. How many JOULES of energy are needed to warm 4.37 g of silver (Ag) from 25.0 c to 27.5 C? The specific heat of silver is 0.24c a. 0.14J b. 2.6 c. 46 J d. 0.022 18. Given the table below of specific heat capacities, which one will experience the SMALLEST increase in temperature if 10.0 J of heat is added to 1.00 g of each of these substances? Water Cast iron Lead (Pb)...
Most questions answered within 3 hours.
-
Having conducted the ethics audit, identify the formal and
informal systems that are in need of...
asked 25 minutes ago -
1)a. Using the Born Haber cycle, determine the enthalpy for
lattice formation of MgO.
Mg (s),...
asked 51 minutes ago -
6. The Bill of Rights (first 10 Amendments to the US
Constitution) consists of several limitations...
asked 47 minutes ago -
What are the ethical issue of using robotics in surgery ? List
the issues based on...
asked 1 hour ago -
URGENT
1. A person standing a certain distance from nine identical
loudspeakers is hearing a sound...
asked 1 hour ago -
If X1 ∼ χ21 and
X2 ∼ χ21 , then? show your
work.
(a) X1 + X2...
asked 1 hour ago -
a fair red die and a fair blue die are rolled. What is the
expected value...
asked 2 hours ago -
How many unpaired electrons would you expect for the complex ion
[FeF6]4-?
0
2
6
3...
asked 2 hours ago -
please briefly explain your idea about the following
paragraph.
Genetic engineering is a process of modifying...
asked 2 hours ago -
When a piece of wood is pressed against a spring and compresses
the spring by 2.00...
asked 2 hours ago -
Organizations that interact with medical patients are subject to
HIPAA compliance.
a. Briefly describe, in your...
asked 4 hours ago -
1. A sociologist examines the relationship between the poverty
rate and several socioeconomic factors. For the...
asked 5 hours ago