7.adiabatic
8.E=hv.
h=6.62*10-34
v=1.25*10-18/6.62*10-34=0.188*1016
Wavelength =c/v=15.95*10-8=159.5nm
.
QUESTION 7 When heat is not exchanged between a system and its surroundings (q = 0),...
When an electron moves from the n = 7 orbit to the n = 5 orbit of a hydrogen atom, a photon of light is emitted. What is the energy of this photon, in Joules? What is the frequency of this photon, in Hertz? What is the wavelength of this photon, in nanometers? (Eel = -2.18 x 10-18 J / n2. h = 6.63 x 10-34 Joule sec. C = 3.00 x 108 m / sec. 1 m = 1...
5. 83 kJ of heat are exchanged between the system and surroundings in an endothermic reaction, and the system does 2.0 k) of work on the surroundings. Which of the following statements are true? a. q>0, w <0, AE >O b. q<0, w<O, AE > C. q< 0, w < 0, AE < 0 d. 9>0, w >O, AE > e. The answer cannot be determined from the information provided
6) Calculate the wavelength, in nanometers, of the light emitted by a hydrogen atom when its electron drops from the n the H atom are given by En-2.18 x 10-18 J (1/n2). (c = 3.00 x 108 m/s; h= 6.63 x 10-34 J. 7 to the n 4 principal energy level. Recall that the energy levels of s) A) 4.45 x 10-20 nm B)2.16 x 10-6 nm C) 9.18 x 10-20 nm D) 1.38 x 1014 nm E) 2.17 x...
My question is attached. Question 8 Status: Incorrect Points earned: 0.00/1.00 Visible light falls into wavelength ranges of 400-700 nm, for which 1 m = 1 x 10° nm. The energy and wavelength of light are related by the equation hc E where E is energy in Joules, h is Planck's constant (6.626 x 10-34 J-s), c is the speed of light ( 2.998 x 108 m/s), and is the wavelength in m. If a visible light photon has a...
Question 3: Properties of light (30 points) The energy of one photon of the microwaves in home microwave ovens is 2.45 x 10-23 J. (c=av, E = hv, h = 6.626 x 10-34 J·s, c = 3.00 x 108 m/s) (a) What is the wavelength of this microwave photon? (b) Is this radiation more or less energetic than radio wave with frequency of 1.98 x 100 Hz? Use the energy calculations to support your answer. (c) Does this radiation have...
please answer all questions A)-5184 B) 1000 7 A vacuum pump reduces the absolute pressure of a container to 1.5x10 Pa. The volume of the e D) 1.5 x10 ontainer is 2.5 m and the temperature of the gas is 300K. How many molecules of gas are left in the contai B) 1.5 x 106 A) 9.06 x104 C) 1.38 x1023 hree moles of an ideal gas are compressed from 55 x 102 to 2.5 x 10 m. During the...
Learning Goal: To understand electromagnetic radiation and be able to perform calculations involving wavelength, frequency, and energy. Several properties are used to define waves. Every wave has a wavelength, which is the distance from peak to peak or trough to trough. Wavelength, typically given the symbol A (lowercase Greek "lambda"), is usually measured in meters. Every wave also has a frequency, which is the number of wavelengths that pass a certain point during a given period of time. Frequency, given...
To understand electromagnetic radiation and be able to perform calculations involving wavelength, frequency, and energy. Several properties are used to define waves. Every wave has a wavelength, which is the distance from peak to peak or trough to trough. Wavelength, typically given the symbol λ (lowercase Greek "lambda"), is usually measured in meters. Every wave also has a frequency, which is the number of wavelengths that pass a certain point during a given period of time. Frequency, given the symbol...
Quickly answer SLISH (EN) - 2020-SPRING-E-CHEM-101-2-03 Dashboard 2020.SPRING-E.CHEM 101.203 .2020 VOICE 19 Aigment on Chapter Question 1 Calculate the wavelength (in nanometers) of a photon emitted by a hydrogen atom when its electron drops from the state to the state PF Select one a 128 x 10 nm b.2.28 x 10 nm c.5.28 x 10 mm d. 4.28 x 10 nm e. 3.28 x 10nm Check 5-03-2020- Chapter 6 part 2 VOICE Jump to... Next pa 30 March & 01...
31. When 9.42 g of methane (CH4) is burned in a bomb calorimeter (heat capacity = 2.677 × 103 J/°C), the temperature rises from 24.00 to 27.08°C. How much heat is absorbed by the calorimeter? CH4(g) + 2O2(g) → CO2(g) + 2H2O(l); ΔH° = –1283.8 kJ a. 745 kJ b. 4.84 × 103 kJ c. 8.24 kJ d. 753 kJ e. 1.28 × 103 kJ 32. Which of the following statements is incorrect concerning the wave function? The wave function...