
Concept explainers
(a)
Interpretation: The effect on temperature on the stretching of rubber band is to be stated and whether the stretching is an exothermic or endothermic process is to be explained in terms of intermolecular forces. Also, the sign of
Concept introduction: Rubber is a
To determine: The effect on temperature on the stretching of rubber band.
(b)
Interpretation: The effect on temperature on the stretching of rubber band is to be stated and whether the stretching is an exothermic or endothermic process is to be explained in terms of intermolecular forces. Also, the sign of
Concept introduction: Rubber is a polymer (long chain molecules) made from organic compound isoprene. The molecules in rubber are arranged in a tangled up position than an aligned position and due to thermal motion they lose their alignment and go back to their tangled state and this is called an elastic contact caused by an entropic force.
To determine: The stretching is an exothermic or endothermic process.
(c)
Interpretation: The effect on temperature on the stretching of rubber band is to be stated and whether the stretching is an exothermic or endothermic process is to be explained in terms of intermolecular forces. Also, the sign of
Concept introduction: Rubber is a polymer (long chain molecules) made from organic compound isoprene. The molecules in rubber are arranged in a tangled up position than an aligned position and due to thermal motion they lose their alignment and go back to their tangled state and this is called an elastic contact caused by an entropic force.
To determine: The above results in terms of intermolecular forces.
(d)
Interpretation: The effect on temperature on the stretching of rubber band is to be stated and whether the stretching is an exothermic or endothermic process is to be explained in terms of intermolecular forces. Also, the sign of
Concept introduction: Rubber is a polymer (long chain molecules) made from organic compound isoprene. The molecules in rubber are arranged in a tangled up position than an aligned position and due to thermal motion they lose their alignment and go back to their tangled state and this is called an elastic contact caused by an entropic force.
To determine: The sign of
(e)
Interpretation: The effect on temperature on the stretching of rubber band is to be stated and whether the stretching is an exothermic or endothermic process is to be explained in terms of intermolecular forces. Also, the sign of
Concept introduction: Rubber is a polymer (long chain molecules) made from organic compound isoprene. The molecules in rubber are arranged in a tangled up position than an aligned position and due to thermal motion they lose their alignment and go back to their tangled state and this is called an elastic contact caused by an entropic force.
To determine: The molecular explanation for the sign of

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Chapter 22 Solutions
EBK CHEMISTRY
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- 25. Predict the major product of the following reaction. 1 equivalent of each of the starting materials was used. H₂C CH3 CH3 H3C H3C H3C. CH2 + H3C. heat CH3 CH H.C. CH3 H.C H.C CH3 CH CH3 CH3 A B C Earrow_forwardFind chemical structures based on the below information. a) Chemical formula C6H8O Compound is aromatic plus has two 1H NMR peaks that integrated for 3 each that are singlets (it could have more peaks in the 1H NMR b) Chemical Formula: C6H100 Compounds is conjugated 'H NMR has a signal that integrates for 6 and is a doublet IR spectra has a signal at 1730 cm-1arrow_forwardJaslev Propose a synthesis of the following starting from benzene and any other reagents and chemicals. No mechanisms are required. Indicate the condition for each step plus the major product for each step. More than two steps are required. Step 1 Step 2 مہد Brarrow_forward
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