The table below gives densities (in g/cm 3 ) of seawater at various temperatures

Question

The table below gives densities (in g/cm3) of seawater at various temperatures (in °C) and salinities (in parts per thousand or ‰) that you will use in this exercise.

Temperature (°C)

33 ‰

34 ‰

35 ‰

0

1.02652

1.02732

1.02813

1

1.02646

1.02726

1.02807

2

1.02640

1.02719

1.02799

3

1.02631

1.02711

1.02791

4

1.02622

1.02701

1.02781

5

1.02612

1.02691

1.02770

6

1.02600

1.02679

1.02757

7

1.02587

1.02665

1.02744

8

1.02573

1.02651

1.02729

9

1.02558

1.02636

1.02714

10

1.02541

1.02619

1.02697

11

1.02524

1.02602

1.02679

12

1.02506

1.02583

1.02661

13

1.02487

1.02564

1.02641

14

1.02467

1.02543

1.02621

15

1.02445

1.02522

1.02599

16

1.02423

1.02500

1.02577

17

1.02400

1.02477

1.02553

18

1.02376

1.02453

1.02529

19

1.02352

1.02428

1.02504

20

1.02326

1.02402

1.02478

21

1.02300

1.02375

1.02451

22

1.02272

1.02348

1.02424

23

1.02244

1.02320

1.02395

24

1.02215

1.02291

1.02366

25

1.02186

1.02261

1.02336

(Data courtesy of Roger Hart, Hatfield Marine Science Center and Oregon Coast Community College)

After examining the table of data above, what are the temperature and salinity of the densest (“heaviest”) water in this sampling? ____, ____

What are the temperature and salinity of the least dense water in the table above? ___, ___ (

Temperature (°C)

33 ‰

34 ‰

35 ‰

0

1.02652

1.02732

1.02813

1

1.02646

1.02726

1.02807

2

1.02640

1.02719

1.02799

3

1.02631

1.02711

1.02791

4

1.02622

1.02701

1.02781

5

1.02612

1.02691

1.02770

6

1.02600

1.02679

1.02757

7

1.02587

1.02665

1.02744

8

1.02573

1.02651

1.02729

9

1.02558

1.02636

1.02714

10

1.02541

1.02619

1.02697

11

1.02524

1.02602

1.02679

12

1.02506

1.02583

1.02661

13

1.02487

1.02564

1.02641

14

1.02467

1.02543

1.02621

15

1.02445

1.02522

1.02599

16

1.02423

1.02500

1.02577

17

1.02400

1.02477

1.02553

18

1.02376

1.02453

1.02529

19

1.02352

1.02428

1.02504

20

1.02326

1.02402

1.02478

21

1.02300

1.02375

1.02451

22

1.02272

1.02348

1.02424

23

1.02244

1.02320

1.02395

24

1.02215

1.02291

1.02366

25

1.02186

1.02261

1.02336

Explanation / Answer

highest densities : temperature 0 degrees and salinity 35 ‰

lowest densities : temperature 25 degrees and salinity 33 ‰

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