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Concept explainers
(a)
Interpretation:
The reason due to which perspiration cools the body, during the heavy exercise should be explained.
Concept Introduction:
Evaporation is the process of converting water (mostly) in liquid state to the gaseous state. Due to change in state of water from liquid to gas its temperature increases and energy is required for such change in state, Thus the water molecules undergoing evaporation, decreases the temperature of the surface by absorbing the heat energy from it.
(b)
Interpretation:
The reason for wet towels to dry quickly on a hot summer day as compared to a cold winter day should be explained.
Concept Introduction:
Evaporation is the process of converting water (mostly) in liquid state to the gaseous state. Due to change in state of water from liquid to gas its temperature increases and energy is required for such change in state, Thus the water molecules undergoing evaporation, decreases the temperature of the surface by absorbing the heat energy from it. The process of evaporation increases on increasing the temperature.
(c)
Interpretation:
The reason for wet clothes to not dry in the plastic bag should be explained.
Concept Introduction:
Evaporation is the process of converting water (mostly) in liquid state to the gaseous state. Due to change in state of water from liquid to gas its temperature increases and energy is required for such change in state, Thus the water molecules undergoing evaporation, decreases the temperature of the surface by absorbing the heat energy from it. The process of evaporation increases on increasing the temperature.
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Chapter 10 Solutions
Basic Chemistry (5th Edition)
- 16. The proton NMR spectral information shown in this problem is for a compound with formula CioH,N. Expansions are shown for the region from 8.7 to 7.0 ppm. The normal carbon-13 spec- tral results, including DEPT-135 and DEPT-90 results, are tabulated: 7 J Normal Carbon DEPT-135 DEPT-90 19 ppm Positive No peak 122 Positive Positive cus и 124 Positive Positive 126 Positive Positive 128 No peak No peak 4° 129 Positive Positive 130 Positive Positive (144 No peak No peak 148 No peak No peak 150 Positive Positive してしarrow_forward3. Propose a synthesis for the following transformation. Do not draw an arrow-pushing mechanism below, but make sure to draw the product of each proposed step (3 points). + En CN CNarrow_forwardShow work..don't give Ai generated solution...arrow_forward
- Label the spectrum with spectroscopyarrow_forwardQ1: Draw the most stable and the least stable Newman projections about the C2-C3 bond for each of the following isomers (A-C). Are the barriers to rotation identical for enantiomers A and B? How about the diastereomers (A versus C or B versus C)? enantiomers H Br H Br (S) CH3 H3C (S) (R) CH3 H3C H Br A Br H C H Br H3C (R) B (R)CH3 H Br H Br H3C (R) (S) CH3 Br H D identicalarrow_forwardLabel the spectrumarrow_forward
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