How much energy would be required to raise the temperature of 100 g of pure wate

Question

How much energy would be required to raise the temperature of 100 g of pure water from liquid water at 95°C to water vapor at 100°C?

heat capacity of liquid water = 1 cal/g ºC; heat capacity of water vapor = 0.5 cal/g ºC; latent heat of vaporization for water = 540 cal/g

Select one:

a. 1,350 cal

b. 54,000 cal

c. 2,700 cal

d. 54,500 cal

Question 42

Not yet answered

Points out of 1.00

Flag question

Question text

The transition between the continental shelf and the deep sea is called the

Select one:

a. the littoral zone

b. the continental slope and rise

c. the abyssal plain

d. the mid-ocean ridge

e. the submarine canyon

Question 43

Not yet answered

Points out of 1.00

Flag question

Question text

Which process contributes to deep water formation by increasing the density of surface water?

Select one:

a. sea ice formation

b. cooling

c. evaporation

d. all of the above

Question 44

Not yet answered

Points out of 1.00

Flag question

Question text

The oldest deep water in the ocean is:

Select one:

a. In the deep North Pacific

b. At the equator because it is equidistant between both poles

c. Antarctic Bottom Water because it is the deepest water mass

Question 45

Not yet answered

Points out of 1.00

Flag question

Question text

The greenhouse effect was discovered 35 yr ago after scientists noticed that climate was getting warmer.

Select one:

True

False

Question 46

Not yet answered

Points out of 1.00

Flag question

Question text

Nutrients are more limited in the photic zone than in the deep ocean.

Select one:

True

False

Question 47

Not yet answered

Points out of 1.00

Flag question

Question text

Eutrophication is associated with:

Select one:

a. low primary productivity

b. low light levels

c. low nutrient levels

d. high nutrients and low oxygen

e. more consumers than producers

Question 48

Not yet answered

Points out of 1.00

Flag question

Question text

How much energy is transferred between trophic levels when phytoplankton is eaten by zooplankton?

Select one:

a. 100%

b. 50%

c. 25%

d. 10%

e. 1%

Question 49

Not yet answered

Points out of 1.00

Flag question

Question text

Why is the West Antarctic ice sheet particularly susceptible to rapid ice loss?

Select one:

a. The ozone hole is centered over Antarctica.

b. The ice sheet is very thin.

c. Antarctica is warming two times faster than the global average.

d. The Southern Ocean has strong vertical mixing.

e. The base of the ice sheet is below sea level.

Question 50

Not yet answered

Points out of 1.00

Flag question

Question text

The mass of the Earth's core is 2.2 x 1027 g and its volume is 1.7 x 1026 cm3. What is its average density?

Select one:

a. 0.77 g/cm^3

b. 1.3 g/cm^3

c. 7.7 g/cm^3

d. 13 g/cm^3

e. 77 g/cm^3

Question 51

Not yet answered

Points out of 1.00

Flag question

Question text

All energy used by organisms ultimately comes from the sun.

Select one:

True

False

Question 52

Not yet answered

Points out of 1.00

Flag question

Question text

The average depth of the ocean is approximately:

Select one:

a. 4 km

b. 600 m

c. 1.5 km

d. 10 km

e. 150 m

Question 53

Not yet answered

Points out of 1.00

Flag question

Question text

What is the rate at which potassium (K+) is added to the ocean?

Residence time of K+ in ocean: 12,000,000 years

Concentration of K in ocean: 0.38 g/kg

Amount of seawater: 1.37×1021 kg

Select one:

a. 1.1 * 10^14 g/yr

b. 3.6 * 10^21 g/yr

c. 3.2 * 10^7 g/yr

d. 8.8 * 10^16 g/yr

e. 4.3 * 10^13 g/yr

Question 54

Not yet answered

Points out of 1.00

Flag question

Question text

What causes rogue waves?

Select one:

a. wave refraction

b. earthquakes

c. no one knows

d. constructive interference

e. storm surges

Question 55

Not yet answered

Points out of 1.00

Flag question

Question text

Longshore drift is caused by:

Select one:

a. submarine canyons

b. seasonal changes in wind strength

c. sea level changes

d. people building dams and groins

e. waves that are not parallel to shore

Question 56

Not yet answered

Points out of 1.00

Flag question

Question text

Which type of organism is an autotroph?

Select one:

a. phytoplankton

b. primary consumer

c. zooplankton

d. heterotroph

Question 57

Not yet answered

Points out of 1.00

Flag question

Question text

Because the residence time of atmospheric CO2 is 3.4 yr, the CO2 we emit has very little effect on atmospheric CO2 levels.

Select one:

a. True

b. False

Question 58

Not yet answered

Points out of 1.00

Flag question

Question text

Which is currently warming faster?

Select one:

a. average temperatures on land

b. average temperature of the ocean surface

c. both the same

Question 59

Not yet answered

Points out of 1.00

Flag question

Question text

What feature accounts for the most area on the sea floor?

Select one:

a. deep sea trenches

b. abyssal plain

c. mid-ocean ridge

d. continental shelf

e. active margins

Question 60

Not yet answered

Points out of 1.00

Flag question

Question text

When sea ice melts and no longer covers the Arctic ocean, the Arctic's albedo will _________ and Arctic temperatures will get __________.

Select one:

a. increase, cooler

b. decrease, warmer

c. decrease, cooler

d. increase, warmer

Explanation / Answer

42) Option b is correct

the continental slope and rise.

43) Option d is correct.

  all of the above

44) Option a is correct

  In the deep North Pacific.

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.