Homework Answers
Both Calorie and Joule represents the Energy but the main difference between them is that Joule is a SI unit or derived unit of energy while Calorie is not the SI unit.
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29. A can of soda has 1.50 x 102 calories. Convert this energy to units of joules. D) 3.59 x 102J E) 6.28 x 102J B)...
12. When the magnesium burns in the presence of oxygen, it forms solid magnesium oxide, and...
12. When the magnesium burns in the presence of oxygen, it forms solid magnesium oxide, and emits a bright white light. Which of the following is the complete, balanced equation for this reaction? A) Mg(s) + O(g) MgO(S) B) 4Mg(s) + O2(g) 2Mg2O(5) C) 2Mg(s) + O2(g) → 2MgO(s) D) Mg(s) + O2(g) → MgO2(s) E) Mg(s) + O2(g) → MgO(s ake-ho 20. When aqueous solutions of NaOH and MgCl2 are mixed, a precipitate forms. What is the correct formula...
__2. Convert the energy value of 175.0 Joules (J) to calories (cal). (I cal. = 4.184)...
__2. Convert the energy value of 175.0 Joules (J) to calories (cal). (I cal. = 4.184) A) 0.1750 cal. B) 0.5230 C) 7322 cal. D) 29.88 cal. E) 41.83 cal. 3. Of the following. AH, is zero for A) Fe(1) B) AI () C) 02 (8) D) Cl: () E) Cl (1) 4. Which of the following sets of subshells is in the correct order from low to high energy for a multi-electron atom. A) Is, 2p, 25 B) 2,...
The units of energy can be expressed as: a. Kg m2/s2 b. Joules c. N-m d....
The units of energy can be expressed as: a. Kg m2/s2 b. Joules c. N-m d. All of the above e. None of the above
HUBY B) b only C) conly 2. Convert the energy value of 175.0 Joules (J) to...
HUBY B) b only C) conly 2. Convert the energy value of 175.0 Joules (J) to calories (cal). (I cat. A) 0.1750 cal. B) 0.5230 C) 732.2 cal. D) 29.88 cal. alories (cal). (I cal. = 4.184J D) 29.88 cal. E) 41.83 cal. E) Cl (1) D) CH (8) _3. Of the following. AH is zero for A) Fe (1) B) Al(s) C) 02 (8) D) Cl(s) --4. Which of the following sets of subshells is in the correct order...
13. A photon has an energy of 5.53 x 10-17 J. What is its frequency in...
13. A photon has an energy of 5.53 x 10-17 J. What is its frequency in s'? [h-6.63 x 10"Js). (4) 14. Infrared radiation from the sun has a wavelength of 6200 nm. Calculate the energy of one photon of that radiation (c = 3.0 x 10 m/s; h = 6.63 x 10-34 J·s). A) B) C) 4.1 x 10-9 J 4.1 x 10-30 J 3.2 x 10-29 D) E) 3.2 x 10-26 J between 10-20 and 10-19 J 15....
25) Objects can possess energy as (a) endothermic energy (b) potential energy (c) kinetic energy A) a only B) b...
25) Objects can possess energy as (a) endothermic energy (b) potential energy (c) kinetic energy A) a only B) b only C) c only D) bandc E) a and 33) The value of AH' for the reaction below is - 790 kl. The enthalpy change accompanying the reaction of 0.95 g of Sis_ k 33) 25 (s) + 302 (9) -2503 (9) A) 12 B) 23 C) -23 D) - 790 E) -12 34) The value of AH' for the...
(10 points) Lithium has one valence electron per atom that can be modeled as free electrons. Consider a Lithium sample made up of n 4.7 x 102 e/cm a) Determine the Fermi energy of Lithium. b) Calc...
(10 points) Lithium has one valence electron per atom that can be modeled as free electrons. Consider a Lithium sample made up of n 4.7 x 102 e/cm a) Determine the Fermi energy of Lithium. b) Calculate the Fermi temperature and the electron velocity at the Fermi surface c) Determine the value of the relaxation time and the mean free path of the conduction 2. electrons if the resistivity is approximately 10-5n.cm at room temperature. d) Calculate the specific heat...
c) 6.86 d) 1.46 x 10 e) 6.86 x 10 ab) 1.46 x 1011 ac) 1.31...
c) 6.86 d) 1.46 x 10 e) 6.86 x 10 ab) 1.46 x 1011 ac) 1.31 x 1016 ad) 1.31 x 1022 ae) 1.31 x 102 4.37 x 10 13 lpm=ly =6.80x 10 -lo ) 0.8l0 30) What wavelength of green light has an energy of 3.61 x 10-19 J? a) b) c) d) e) ab) ac) 1.20 x 10-27 nm 5.50 x 10-7 nm 120 nm 182 nm 550 nm 1.82 x 106 nm 1.82 x 1015 nm 31)...
units 1. Recall that we write XI = x if X ~ Mr where M is a mass and we set ћ = c = 1. Find X] for the following quantities X in D spacetime dimensions (a) Voltage V. (b) Current I. (c) Resistance R....
units
1. Recall that we write XI = x if X ~ Mr where M is a mass and we set ћ = c = 1. Find X] for the following quantities X in D spacetime dimensions (a) Voltage V. (b) Current I. (c) Resistance R. (d) TorqueT (e) Moment of inertia I. (f) The area A of a SD2 sphere (which can surround an object in D - 1 space dimensions. (g) The electric flux of an electrically charged...
can you guys help? Sapling Learning this question has been customized by Ma Joy Heising at Massachusetts College of...
can you guys help?
Sapling Learning this question has been customized by Ma Joy Heising at Massachusetts College of Pharmacy & Health scie At 1 atm, how much energy is required to heat 75.0 g of H2O(s) at-24.0 ℃ to H2O(g) at 157.0-C? STRATEGY 1. Calculate the energy for each temperature change or phase change individually a. the energy needed to heat 75.0 g of H20(s) from-24.0 C to its melting point. b. the energy needed to melt 75.0 g...
12. When the magnesium burns in the presence of oxygen, it forms solid magnesium oxide, and emits a bright white light. Which of the following is the complete, balanced equation for this reaction? A) Mg(s) + O(g) MgO(S) B) 4Mg(s) + O2(g) 2Mg2O(5) C) 2Mg(s) + O2(g) → 2MgO(s) D) Mg(s) + O2(g) → MgO2(s) E) Mg(s) + O2(g) → MgO(s ake-ho 20. When aqueous solutions of NaOH and MgCl2 are mixed, a precipitate forms. What is the correct formula...
__2. Convert the energy value of 175.0 Joules (J) to calories (cal). (I cal. = 4.184) A) 0.1750 cal. B) 0.5230 C) 7322 cal. D) 29.88 cal. E) 41.83 cal. 3. Of the following. AH, is zero for A) Fe(1) B) AI () C) 02 (8) D) Cl: () E) Cl (1) 4. Which of the following sets of subshells is in the correct order from low to high energy for a multi-electron atom. A) Is, 2p, 25 B) 2,...
HUBY B) b only C) conly 2. Convert the energy value of 175.0 Joules (J) to calories (cal). (I cat. A) 0.1750 cal. B) 0.5230 C) 732.2 cal. D) 29.88 cal. alories (cal). (I cal. = 4.184J D) 29.88 cal. E) 41.83 cal. E) Cl (1) D) CH (8) _3. Of the following. AH is zero for A) Fe (1) B) Al(s) C) 02 (8) D) Cl(s) --4. Which of the following sets of subshells is in the correct order...
13. A photon has an energy of 5.53 x 10-17 J. What is its frequency in s'? [h-6.63 x 10"Js). (4) 14. Infrared radiation from the sun has a wavelength of 6200 nm. Calculate the energy of one photon of that radiation (c = 3.0 x 10 m/s; h = 6.63 x 10-34 J·s). A) B) C) 4.1 x 10-9 J 4.1 x 10-30 J 3.2 x 10-29 D) E) 3.2 x 10-26 J between 10-20 and 10-19 J 15....
25) Objects can possess energy as (a) endothermic energy (b) potential energy (c) kinetic energy A) a only B) b only C) c only D) bandc E) a and 33) The value of AH' for the reaction below is - 790 kl. The enthalpy change accompanying the reaction of 0.95 g of Sis_ k 33) 25 (s) + 302 (9) -2503 (9) A) 12 B) 23 C) -23 D) - 790 E) -12 34) The value of AH' for the...
(10 points) Lithium has one valence electron per atom that can be modeled as free electrons. Consider a Lithium sample made up of n 4.7 x 102 e/cm a) Determine the Fermi energy of Lithium. b) Calculate the Fermi temperature and the electron velocity at the Fermi surface c) Determine the value of the relaxation time and the mean free path of the conduction 2. electrons if the resistivity is approximately 10-5n.cm at room temperature. d) Calculate the specific heat...
c) 6.86 d) 1.46 x 10 e) 6.86 x 10 ab) 1.46 x 1011 ac) 1.31 x 1016 ad) 1.31 x 1022 ae) 1.31 x 102 4.37 x 10 13 lpm=ly =6.80x 10 -lo ) 0.8l0 30) What wavelength of green light has an energy of 3.61 x 10-19 J? a) b) c) d) e) ab) ac) 1.20 x 10-27 nm 5.50 x 10-7 nm 120 nm 182 nm 550 nm 1.82 x 106 nm 1.82 x 1015 nm 31)...
units
1. Recall that we write XI = x if X ~ Mr where M is a mass and we set ћ = c = 1. Find X] for the following quantities X in D spacetime dimensions (a) Voltage V. (b) Current I. (c) Resistance R. (d) TorqueT (e) Moment of inertia I. (f) The area A of a SD2 sphere (which can surround an object in D - 1 space dimensions. (g) The electric flux of an electrically charged...
can you guys help?
Sapling Learning this question has been customized by Ma Joy Heising at Massachusetts College of Pharmacy & Health scie At 1 atm, how much energy is required to heat 75.0 g of H2O(s) at-24.0 ℃ to H2O(g) at 157.0-C? STRATEGY 1. Calculate the energy for each temperature change or phase change individually a. the energy needed to heat 75.0 g of H20(s) from-24.0 C to its melting point. b. the energy needed to melt 75.0 g...
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