5/26 Final Graph Quiz

Based on Figure 2, what salinity would be expected at 23°W?

• 35 psu

• 33 psu

• 31 psu

• 29 psu

Based on Figure 2, which of the following conclusions is supported?

• Temperature and salinity are measured in the same units

• Both temperature and salinity increase as one moves farther west of the Prime Meridian

• Temperature and salinity have an inverse (oppoiste) relationship

• Temperature and salinity have a direct relationship

A researcher wants to understand the relationship, if any, between temperature and salinity. If he measures temperature in regions with salinity >35 psu, what will he likely record?

• 31˚C

• 29˚C

• 27˚C

• 25˚C

If you measure a thermal conductivity of 55 mW/mK at 450K, which gas did you most likely test?

(Hint: Refer to Table 1 and look for a gas that can have a thermal conductivity of 55 mW/mK between 400K and 500K.)

• Methane

• Butane

• Propane

• Ethane

Based on the data in Table 1, which gas would conduct the greatest amount of heat at a given temperature?

(Thermal conductivity (mW/mK) is the ability to transport heat energy through a specified material)

• CH₄

• C₂H₆

• C₃H₈

• C₄H₁₀

What thermal conductivity would you predict for propane at 450K?

(Hint: what mW/mK would fall between 400K & 500K for propane?)

• 31 mW/mK

• 38 mW/mK

• 43 mW/mK

• 44 mW/mK

Which of the following elements has the smallest melting point (in ^oC)?

• N

• Ne

• H

• O

A scientist hypothesizes that metals have larger atomic radii than non-metals. Do the data in Table 1 support this hypothesis?

• Yes, metals have smaller atomic radii than non-metals

• Yes, metals have larger atomic radii than non-metals

• No, metals have smaller atomic radii than non-metals

• No, metals have larger atmomic radii than non-metals

A scientist hypothesizes that as an element's atomic mass increases, it's melting point increases. Would the data in table 1 support the hypothesis?

• Yes, an atomic number increases, the melting point increases

• Yes, there is a positive correlation between atomic number and melting point

• No, as atomic number increases, the melting point decreases

• No, there is no consistent relationship between atomic mass and melting point

A new element was discovered with an atomic mass of 15.027. Based on Table 1, this new element would most likely be classified as which of the following?

• Non-metal

• Metal

• Metalloid

• Noble Gas