is this positive or negative?Homework Answers
In standard state enthalpy of formation is zero. formation of fullerenes = positive.
(E) is correct option
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is this positive or negative?
The standard state of carbon as a free element is graphite....
How is the standard state of an element defined? part A How is the standard state of an element defined? It is the mo...
How is the standard state of an element defined? part A How is the standard state of an element defined? It is the most stable form of an element at 100000 Pa and the specified temperature, usually 0 ∘C. It is the most stable form of an element at 1 atm and the specified temperature, usually 25 ∘C. It is the most abundant form of an element. It is the most stable form of an element at 1 atm and...
DI Question 3 2 pts The AG (change in Gibbs free energy at standard biochemical state)...
DI Question 3 2 pts The AG (change in Gibbs free energy at standard biochemical state) for the reaction below is -8.6 kJ/mol. What is ao for this reaction at 37°C when [A)-0.2 M [B-0.2 M, (C]-0.4 M, and ID)-0.6 M? ABCDase A BCD 3.98 J/mol O -4.16 KJ/mol 0-13.22kJ/mol 0 6.81k/moll DI Question 4 2 pts Which one of the following statements is true? 0 if ΔG is negative, the reaction will be spontaneous. Exothermic reactions are always spontaneous....
Monday Homework Problem 1.4 Your standard number 2 mechanical pencil has a graphite lead with mass...
Monday Homework Problem 1.4 Your standard number 2 mechanical pencil has a graphite lead with mass 0.05g. How many protons are in this quantity of graphite? The atomic mass of carbon is 12g/mole and the atomic number is 6. Select One of the Following: (a) 3.1 x 1010 protons (b) 1.5 x 1022 protons (c) 5.1 x 1024protons (d) 2.3 x 1021 protons (e) 6.5 x 1023 protons Monday Homework Problem 1.5 The dielectric plate of an electrophorus is charged...
Justify the following sentences by answering (T) for TRUE or (F) for FALSE. (1 mark each)...
Justify the following sentences by answering (T) for TRUE or (F) for FALSE. (1 mark each) AE is independent on the initial and final state of a system. The sum of entropy changes of the system and surroundings is always positive. The ratio of numerical values of partial pressures of the reaction participants is unitless. Q is small if products pressures are small, a large Q means a negative or good (favorable) contribution to the free energy For pure solids...
1.The spontaneity of system or a biochemical reaction can be determined by: A) Enthalpy alone B)...
1.The spontaneity of system or a biochemical reaction can be determined by: A) Enthalpy alone B) Entropy alone C) Gibbs Free energy D) Temperature and heat 2.A reaction in equilibrium where both forward and reverse reactions are proceeding equally, will have a DELTA G value of: A) Positive B) Zero C) Negative 3.A reaction was originally endergonic, but became exergonic after reducing the temperature. Therefore, this reaction originally had __________ deltaH and a ______ delta S. A) small positive, large...
C)2 C)2D) 3 Question 67 In a favorable reaction, the free energy of the products is...
C)2 C)2D) 3 Question 67 In a favorable reaction, the free energy of the products is the free repete A) Greater than B) Less than C) Same as D) Has no bearing on Question 68 The lock and key model of substrate binding and ematecas A) The release of product B) Substrate specificity C) Formation of a transition state D) The catalytic mechanism 80 C) Phosphorus D) Zinc Question 65 When monomers covalently attach to each other to form a...
write in java 1. Assume the availability of a method named makeLine that can be passed a non-negative...
write in java 1. Assume the availability of a method named makeLine that can be passed a non-negative integer n and a character c and return a String consisting of n identical characters that are all equal to c. Write a method named printTriangle that receives two integer parameters n and k. If n is negative the method does nothing. If n happens to be an even number, itsvalue is raised to the next odd number (e.g. 4-->5). Then, when k has the value zero, the method prints...
Problem 5.28. Calcium carbonate, CaCO3, has two common crystae forms, calcite and aragonite. Thermodynamic data for these phases can be found at the back of this book (a) Which is stable at earth...
Problem 5.28. Calcium carbonate, CaCO3, has two common crystae forms, calcite and aragonite. Thermodynamic data for these phases can be found at the back of this book (a) Which is stable at earth's surface, calcite or aragonite? (b) Calculate the pressure (still at room temperature) at which the other phase should become stable. All of the values in this table are for one mole of material at 298 K and 1 bar. Following the chemical formula is the form of...
Problem 7 Let us now consider a nonconducting sphere of radius R carrying a total positive...
Problem 7 Let us now consider a nonconducting sphere of radius R carrying a total positive charge Q uniformly distributed throughout its volume, and predict what the behavior of the potential is as a function of radial distance from the center of the sphere In class, we argued that the field points radially outward everywhere and found (using Gauss's law) that the magnitude of the electric field E(r) at a radial distance r < R from the center is given...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be predicted from its position in the Periodic Table? forms coloured compounds conducts electricity when solid can be used has low density as a catalyst X A X X Xx 2. (0620-W 2012-Paper 1/1-Q20) The diagram shows an outline of the Periodic Table. U V W X Y Which of the elements U, V, W, X and Y would react together in the ratio of...
DI Question 3 2 pts The AG (change in Gibbs free energy at standard biochemical state) for the reaction below is -8.6 kJ/mol. What is ao for this reaction at 37°C when [A)-0.2 M [B-0.2 M, (C]-0.4 M, and ID)-0.6 M? ABCDase A BCD 3.98 J/mol O -4.16 KJ/mol 0-13.22kJ/mol 0 6.81k/moll DI Question 4 2 pts Which one of the following statements is true? 0 if ΔG is negative, the reaction will be spontaneous. Exothermic reactions are always spontaneous....
Monday Homework Problem 1.4 Your standard number 2 mechanical pencil has a graphite lead with mass 0.05g. How many protons are in this quantity of graphite? The atomic mass of carbon is 12g/mole and the atomic number is 6. Select One of the Following: (a) 3.1 x 1010 protons (b) 1.5 x 1022 protons (c) 5.1 x 1024protons (d) 2.3 x 1021 protons (e) 6.5 x 1023 protons Monday Homework Problem 1.5 The dielectric plate of an electrophorus is charged...
Justify the following sentences by answering (T) for TRUE or (F) for FALSE. (1 mark each) AE is independent on the initial and final state of a system. The sum of entropy changes of the system and surroundings is always positive. The ratio of numerical values of partial pressures of the reaction participants is unitless. Q is small if products pressures are small, a large Q means a negative or good (favorable) contribution to the free energy For pure solids...
C)2 C)2D) 3 Question 67 In a favorable reaction, the free energy of the products is the free repete A) Greater than B) Less than C) Same as D) Has no bearing on Question 68 The lock and key model of substrate binding and ematecas A) The release of product B) Substrate specificity C) Formation of a transition state D) The catalytic mechanism 80 C) Phosphorus D) Zinc Question 65 When monomers covalently attach to each other to form a...
Problem 5.28. Calcium carbonate, CaCO3, has two common crystae forms, calcite and aragonite. Thermodynamic data for these phases can be found at the back of this book (a) Which is stable at earth's surface, calcite or aragonite? (b) Calculate the pressure (still at room temperature) at which the other phase should become stable. All of the values in this table are for one mole of material at 298 K and 1 bar. Following the chemical formula is the form of...
Problem 7 Let us now consider a nonconducting sphere of radius R carrying a total positive charge Q uniformly distributed throughout its volume, and predict what the behavior of the potential is as a function of radial distance from the center of the sphere In class, we argued that the field points radially outward everywhere and found (using Gauss's law) that the magnitude of the electric field E(r) at a radial distance r < R from the center is given...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be predicted from its position in the Periodic Table? forms coloured compounds conducts electricity when solid can be used has low density as a catalyst X A X X Xx 2. (0620-W 2012-Paper 1/1-Q20) The diagram shows an outline of the Periodic Table. U V W X Y Which of the elements U, V, W, X and Y would react together in the ratio of...
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