776 J is the same quantity of energy as Question 4 options: 1) 7.76 ´ 105...
776 J is the same quantity of energy as
Question 4 options:
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Homework Answers
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776 J is the same quantity of energy as
Question 4 options:
1)
7.76 ´ 105...
1. The dimensions of the SI unit of energy, the Joule (J), are A. K B....
1. The dimensions of the SI unit of energy, the Joule (J), are A. K B. kg m s C. kg m2 s-2 D. kg m-1 s-2 E. kg m2 s-1 2. Natural gas, or methane, is an important fuel. Combustion of one mole of methane releases 802.3 kilojoules of energy. How much energy does that represent in kilocalories? A. 3.36×103 kcal B. 3.357 kcal C. 191.8 kcal D. 0.192 kcal E. 1.918×105 kcal 3. What is the change in...
Energy level diagrams Question 1 options: Have the same form for all quantum systems. Show the...
Energy level diagrams Question 1 options: Have the same form for all quantum systems. Show the quantum-mechanically available energies that a particle can have. Show the classically available energies that a particle can have. All of the above. I don't know. Which of the following is not a type of beta-decay? Question 2 options: The emission of an electron (and other stuff) from a nucleus The emission of an positron (and other stuff) from a nucleus The emission of a...
Question 2: Calculate the energy, in units of J/atom, for the transition from (n - 1) to (n ). Th...
asap please. give answer + explain plz
Question 2: Calculate the energy, in units of J/atom, for the transition from (n - 1) to (n ). Then express the calculated energy in units of kJ/mole. Compare the energy in kJ/mole with the literature value of the hydrogen ionization energy. Next comment on any observations and accuracy.
Question 2: Calculate the energy, in units of J/atom, for the transition from (n - 1) to (n ). Then express the calculated energy...
QUESTION 1 How many miles in 3.00 x 105 mm? hint: 1609 m = 1 mile...
QUESTION 1 How many miles in 3.00 x 105 mm? hint: 1609 m = 1 mile 2.74 x 10 2 mile 1.85 x 10 -3 mile 1.23 x 10 -2 mile 1.21 mile 1.85 x 10 -4 mile 0.186 mile 2.74 x 10 -1 mile 0.0270 mile QUESTION 3 There are 6.40 x 10 2 acres in a square mile (mile 2). How many m2 (square meters) are there in 0.250 acres? Hint: 1 mile = 1.609...
Considering the following diagram, the number 5 corresponds to the ___. Question 3 options: products reactants...
Considering the following diagram, the number 5 corresponds to
the ___.
Question 3 options:
products
reactants
transition state
activation energy
Considering the following diagram, the energy of the transition
state is about ___.
Question 4 options:
130 kJ/mol
80 kJ/mol
50 kJ/mol
20 kJ/mol
Considering the following diagram, the activation energy of the
forward reaction is about ___.
Question 5 options:
60 kJ
130 kJ
80 kJ
20 kJ
Question 1 (1 point) The specific heat of water is 4.184 J/g – °C . Question...
Question 1 (1 point) The specific heat of water is 4.184 J/g – °C . Question 1 options: True False Question 2 (1 point) Saved An exothermic reaction absorbs heat from its surroundings. Question 2 options: True False Question 3 (1 point) The melting of ice is an endothermic reaction. Question 3 options: True False Question 4 (1 point) Hess’s Law states that a reaction will have the same enthalpy change regardless of whether the reaction occurs in a single...
Match each of the following units of the quantity for which it is appropriate. 1. J/g*K...
Match each of the following units of the quantity for which it is appropriate. 1. J/g*K 2. J/mol*K 3. cal 4. kg*m/s^2 5. J 6. kg*m^2/s^2 7. kg*m/s 8. mol/K ------------------------------------------------------------------------------------------------------------- 1. Energy = 2. specific Heat Capacity = 3. Molar Heat Capacity = 4. None of these=
What quantity of energy does it take to convert 1.29 kg of ice at -23 degree...
What quantity of energy does it take to convert 1.29 kg of ice at -23 degree C to water at 35 degree C? Specific heat capacities: ice 2.03 J/(g degree C) and liquid water 4.184 J/(g degree C) Delta H_vap = 40.7 kJ/mol; Delta H_fus = 6.02 kJ/mol A) 680 kJ B) 257 kJ C) 6.04 times 10^4 kJ D) 3.59 times 10^3 kJ
1. 2. Question 10 1 pts The graphs show potential energy diagrams for the same reaction...
1.
2.
Question 10 1 pts The graphs show potential energy diagrams for the same reaction at T-900. K R P 1) uncatalysed process; 2) catalysed reaction Uncatalyzed Reaction 400 300 reactants 200 100 products Reaction coordinate Uncatalysed reaction: Potential Energy (P.E.) vs reaction coordinate. Energy is measured from O to 400. kJ, and the reaction coordinate is associated with the evolution of the reaction. The PE of the reactants is 225 kJ. Then the energy grows to 400. kJ,...
2. For the following example, identify the following. H2O(l) → H2O(s) question 2 options a negative...
2. For the following example, identify the following.
H2O(l) → H2O(s)
question 2 options
a negative ΔH and a negative ΔS
a positive ΔH and a negative ΔS
a negative ΔH and a positive ΔS
a positive ΔH and a positive ΔS
It is not possible to determine without more information.
3. Calculate ΔS°rxn for the following reaction. The S° for each
species is shown below the reaction.
C2H2(g) + H2(g) →
C2H4(g)
S°(J/mol∙K) 200.9 130.7 219.3
Question 4 options:...
asap please. give answer + explain plz
Question 2: Calculate the energy, in units of J/atom, for the transition from (n - 1) to (n ). Then express the calculated energy in units of kJ/mole. Compare the energy in kJ/mole with the literature value of the hydrogen ionization energy. Next comment on any observations and accuracy.
Question 2: Calculate the energy, in units of J/atom, for the transition from (n - 1) to (n ). Then express the calculated energy...
Considering the following diagram, the number 5 corresponds to
the ___.
Question 3 options:
products
reactants
transition state
activation energy
Considering the following diagram, the energy of the transition
state is about ___.
Question 4 options:
130 kJ/mol
80 kJ/mol
50 kJ/mol
20 kJ/mol
Considering the following diagram, the activation energy of the
forward reaction is about ___.
Question 5 options:
60 kJ
130 kJ
80 kJ
20 kJ
What quantity of energy does it take to convert 1.29 kg of ice at -23 degree C to water at 35 degree C? Specific heat capacities: ice 2.03 J/(g degree C) and liquid water 4.184 J/(g degree C) Delta H_vap = 40.7 kJ/mol; Delta H_fus = 6.02 kJ/mol A) 680 kJ B) 257 kJ C) 6.04 times 10^4 kJ D) 3.59 times 10^3 kJ
1.
2.
Question 10 1 pts The graphs show potential energy diagrams for the same reaction at T-900. K R P 1) uncatalysed process; 2) catalysed reaction Uncatalyzed Reaction 400 300 reactants 200 100 products Reaction coordinate Uncatalysed reaction: Potential Energy (P.E.) vs reaction coordinate. Energy is measured from O to 400. kJ, and the reaction coordinate is associated with the evolution of the reaction. The PE of the reactants is 225 kJ. Then the energy grows to 400. kJ,...
2. For the following example, identify the following.
H2O(l) → H2O(s)
question 2 options
a negative ΔH and a negative ΔS
a positive ΔH and a negative ΔS
a negative ΔH and a positive ΔS
a positive ΔH and a positive ΔS
It is not possible to determine without more information.
3. Calculate ΔS°rxn for the following reaction. The S° for each
species is shown below the reaction.
C2H2(g) + H2(g) →
C2H4(g)
S°(J/mol∙K) 200.9 130.7 219.3
Question 4 options:...
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