(a)
Interpretation:
The energy of spinning blades of a fan are a potential or kinetic energy has to be given.
Concept Introduction:
Potential energy:
- Potential energy is the stored energy in an object or system because of its position.
- Potential energy is not relative to the environment of an object.
- Potential energy cannot be transferred.
- Example: water at the top of a waterfall.
Kinetic energy:
- The energy of a body or system with respect to the motion of the body or of the particles in the system.
- Kinetic energy of an object is relative to other moving and stationary objects in its immediate environment.
- Kinetic energy can be transferred from one moving object to another.
- Example: water flow.
(b)
Interpretation:
The energy of flying bird is a potential or kinetic energy has to be given.
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
The energy stored in a sodium hydroxide in a sealed jar is a potential or kinetic energy has to be given.
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
The energy stored in a person napping is a potential or kinetic energy has to be given.
Concept Introduction:
Refer to part (a).
(e)
Interpretation:
The energy of rippling ocean waves is a potential or kinetic energy has to be given.
Concept Introduction:
Refer to part (a).
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Chapter 4 Solutions
FOUNDATIONS OF COLLEGE CHEM +KNEWTONALTA
- Q1: For each molecule, assign each stereocenter as R or S. Circle the meso compounds. Label each compound as chiral or achiral. OH HO CI Br H CI CI Br CI CI Xf x f g Br D OH Br Br H₂N R. IN Ill I -N S OMe D II H CO₂H 1/111 DuckDuckGarrow_forwardThese are synthesis questions. You need to show how the starting material can be converted into the product(s) shown. You may use any reactions we have learned. Show all the reagents you need. Show each molecule synthesized along the way and be sure to pay attention to the regiochemistry and stereochemistry preferences for each reaction. If a racemic molecule is made along the way, you need to draw both enantiomers and label the mixture as "racemic". All of the carbon atoms of the products must come from the starting material! ? H Harrow_forwardQ5: Draw every stereoisomer for 1-bromo-2-chloro-1,2-difluorocyclopentane. Clearly show stereochemistry by drawing the wedge-and-dashed bonds. Describe the relationship between each pair of the stereoisomers you have drawn.arrow_forward
- Classify each pair of molecules according to whether or not they can participate in hydrogen bonding with one another. Participate in hydrogen bonding CH3COCH3 and CH3COCH2CH3 H2O and (CH3CH2)2CO CH3COCH3 and CH₂ CHO Answer Bank Do not participate in hydrogen bonding CH3CH2OH and HCHO CH3COCH2CH3 and CH3OHarrow_forwardNonearrow_forwardQ4: Comparing (3S,4S)-3,4-dimethylhexane and (3R,4S)-3,4-dimethylhexane, which one is optically active? Briefly explain.arrow_forward
- Nonearrow_forwardNonearrow_forwardGiven the standard enthalpies of formation for the following substances, determine the reaction enthalpy for the following reaction. 4A (g) + 2B (g) → 2C (g) + 7D (g) AHrxn =?kJ Substance AH in kJ/mol A (g) - 20.42 B (g) + 32.18 C (g) - 72.51 D (g) - 17.87arrow_forward
- Determine ASran for Zn(s) + 2HCl(aq) = ZnCl2(aq) + H2(aq) given the following information: Standard Entropy Values of Various Substance Substance So (J/mol • K) 60.9 Zn(s) HCl(aq) 56.5 130.58 H2(g) Zn2+(aq) -106.5 55.10 CI (aq)arrow_forward3) Catalytic hydrogenation of the compound below produced the expected product. However, a byproduct with molecular formula C10H12O is also formed in small quantities. What is the by product?arrow_forwardWhat is the ΔHorxn of the reaction? NaOH(aq) + HCl(aq) → H2O(l) + NaCl(aq) ΔHorxn 1= ________ kJ/molarrow_forward
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