Homework Answers
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...
Hi everyone! Can someone do part c) and give me an explanation on it? Could you...
Hi everyone! Can someone do part c) and give me an explanation
on it? Could you also do a) and b) too. Thanks!
8. (18 pts) A microwave oven uses a klystron to make the radiation used by the oven. Your microwave oven produces radiation with a wavelength () of 1.56 cm. a) What is the energy (in J) of a single photon of wavelength 1.56 cm? b) What is the frequency (in s') of that photon? c) You place...
Part A A 100-watt light bulb radiates energy at a rate of 100 J/s. (The watt,...
Part A A 100-watt light bulb radiates energy at a rate of 100 J/s. (The watt, a unit of power or energy over time, is defined as 1 J/s.) If all of the light emitted has a wavelength of 525 nm, how many photons are emitted per second? Express your answer to three significant figures. X 10 radiation- photons per second Submit Previous Answers Request Answer X Incorrect: Try Again; 12 attempts remaining Part B The energy required to dislodge...
24 of 29 Review | Constants 1 Periodic Table Part A Suppose that the microwave radiation...
24 of 29 Review | Constants 1 Periodic Table Part A Suppose that the microwave radiation has a wavelength of 12 cm. How many photons are required to heat 265 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/(8.K), as water over this temperature range. Express the number of photons numerically. ► View Available Hint(s) IVO ALO * mo ? photons Submit Next >
Section I: First Order Systems 1) A microwave oven is used to heat a cylindrical glass...
Section I: First Order Systems 1) A microwave oven is used to heat a cylindrical glass beaker completely full of water. The magnetron tube generates 800 watts of thermal power, all of which is absorbed by the water. The glass beaker sits on a thermally insulated plate. As the microwaves increase the temperature of the water, the beaker temperature will also increase due to conduction and convection from the Mode Stirrer Wave Guide Magnetron Tube (source of radiation) Oven Cavity...
hello please answer all questions or at least the first six questions. please type! thanks 7....
hello please answer all questions or at least the first six
questions. please type! thanks
7. Define exothermic and endothermic. What is the sign on q for each type of reaction? 8. A dental hygienist uses x-rays (I 0.100 nm) to take a series of dental radiographs while the patient listens to a radio station ( 325 cm) and looks out the window at the blue sky (l 473 nm). What is the frequency (in s') of the electromagnetic radiation...
Chemistry Please show complete work for the question 2.CALORIMETRY a) How many kiloJoules of energy are...
Chemistry
Please show complete work for the question
2.CALORIMETRY a) How many kiloJoules of energy are needed to raise the temperature of 1.50dm of water from 20.0°C to 47.0°c? b) The specific heats of three different liquid substances are listed as Carbon tetrachloride: 0.856 J/g'C Benzene: 1.74 J/g'C Acetic Acid: 2.05 An experimenter found that 1.42 kJ of heat energy raised the temperature of 19.70g of an unknown liquid substance by 36.4°C. What substance could this be? (Show all work)...
Additional info: Meal = 1720 Kilocalories Mass of myself = 50 kg The Joule () is...
Additional info:
Meal = 1720 Kilocalories
Mass of myself = 50 kg
The Joule () is the SI unit of energy. (J = kg:m? S2 A calorie is another unit of energy. The definition of a calorie is the amount of heat (energy) necessary to raise the temperature of Ig of water by 1° Celsius. Ig of water occupies 1 milliliter (ml) = 1 cubic centimeter (cm) of volume. lkcal=4186J Energy comes in many forms and energy may be converted...
Sectn anwering these questions, show all your work in your blue book. 23 The first step...
Sectn anwering these questions, show all your work in your blue book. 23 The first step in the Ostwald process for producing nitric acid is the reaction of 175g of ammonia with 175. g of oxygen gas yields 101. g of nitric oxide (NO), whs eeS04e)4NOR)+ 6M,Ole) he percent yield of this reaction? 24 24.5 mL ofa 0.1050 M Na CO, solution is added to 75.5.0 mL of 0.1250 M NaCl. What is the concentration of sodium lon in the...
Please show all work!!! U Question 19 O pts 1) A 50 A current flows through...
Please show all work!!!
U Question 19 O pts 1) A 50 A current flows through the leads of an electrical appliance (al Calculate how much charge passes through the appliance in 10 min. (b) How many electrons are in that amount of charge. 11) A 500 and a 200 resistor are connected in series with an ideal battery that has an emf of 20 V. (a) What current flows through each resistor? (b) What power is delivered to each...
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...
Hi everyone! Can someone do part c) and give me an explanation
on it? Could you also do a) and b) too. Thanks!
8. (18 pts) A microwave oven uses a klystron to make the radiation used by the oven. Your microwave oven produces radiation with a wavelength () of 1.56 cm. a) What is the energy (in J) of a single photon of wavelength 1.56 cm? b) What is the frequency (in s') of that photon? c) You place...
Part A A 100-watt light bulb radiates energy at a rate of 100 J/s. (The watt, a unit of power or energy over time, is defined as 1 J/s.) If all of the light emitted has a wavelength of 525 nm, how many photons are emitted per second? Express your answer to three significant figures. X 10 radiation- photons per second Submit Previous Answers Request Answer X Incorrect: Try Again; 12 attempts remaining Part B The energy required to dislodge...
24 of 29 Review | Constants 1 Periodic Table Part A Suppose that the microwave radiation has a wavelength of 12 cm. How many photons are required to heat 265 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/(8.K), as water over this temperature range. Express the number of photons numerically. ► View Available Hint(s) IVO ALO * mo ? photons Submit Next >
Section I: First Order Systems 1) A microwave oven is used to heat a cylindrical glass beaker completely full of water. The magnetron tube generates 800 watts of thermal power, all of which is absorbed by the water. The glass beaker sits on a thermally insulated plate. As the microwaves increase the temperature of the water, the beaker temperature will also increase due to conduction and convection from the Mode Stirrer Wave Guide Magnetron Tube (source of radiation) Oven Cavity...
hello please answer all questions or at least the first six
questions. please type! thanks
7. Define exothermic and endothermic. What is the sign on q for each type of reaction? 8. A dental hygienist uses x-rays (I 0.100 nm) to take a series of dental radiographs while the patient listens to a radio station ( 325 cm) and looks out the window at the blue sky (l 473 nm). What is the frequency (in s') of the electromagnetic radiation...
Chemistry
Please show complete work for the question
2.CALORIMETRY a) How many kiloJoules of energy are needed to raise the temperature of 1.50dm of water from 20.0°C to 47.0°c? b) The specific heats of three different liquid substances are listed as Carbon tetrachloride: 0.856 J/g'C Benzene: 1.74 J/g'C Acetic Acid: 2.05 An experimenter found that 1.42 kJ of heat energy raised the temperature of 19.70g of an unknown liquid substance by 36.4°C. What substance could this be? (Show all work)...
Additional info:
Meal = 1720 Kilocalories
Mass of myself = 50 kg
The Joule () is the SI unit of energy. (J = kg:m? S2 A calorie is another unit of energy. The definition of a calorie is the amount of heat (energy) necessary to raise the temperature of Ig of water by 1° Celsius. Ig of water occupies 1 milliliter (ml) = 1 cubic centimeter (cm) of volume. lkcal=4186J Energy comes in many forms and energy may be converted...
Sectn anwering these questions, show all your work in your blue book. 23 The first step in the Ostwald process for producing nitric acid is the reaction of 175g of ammonia with 175. g of oxygen gas yields 101. g of nitric oxide (NO), whs eeS04e)4NOR)+ 6M,Ole) he percent yield of this reaction? 24 24.5 mL ofa 0.1050 M Na CO, solution is added to 75.5.0 mL of 0.1250 M NaCl. What is the concentration of sodium lon in the...
Please show all work!!!
U Question 19 O pts 1) A 50 A current flows through the leads of an electrical appliance (al Calculate how much charge passes through the appliance in 10 min. (b) How many electrons are in that amount of charge. 11) A 500 and a 200 resistor are connected in series with an ideal battery that has an emf of 20 V. (a) What current flows through each resistor? (b) What power is delivered to each...
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