Question 1

A patient is brought into the emergency room with a body temperature of 95.0 °F. What is this temperature in degrees Celsius? Use the formula $$T_\mathrm{C} = \frac{T_\mathrm{F} - 32}{1.8}.$$

Accepted Answer

$$35.0\ ^\circ\mathrm{C}$$

Question 2

Which of the following statements about the Kelvin temperature scale is correct?

Accepted Answer

The Kelvin scale does not allow negative temperatures.

Question 3

A laboratory experiment requires water to be heated to its boiling point. What is the boiling point of water in Kelvin?

Accepted Answer

$$373\ \mathrm{K}$$

Question 4

If the temperature outside is $$-15\ ^\circ\mathrm{F}$$, what is the temperature in degrees Celsius? Use $$T_\mathrm{C} = \frac{T_\mathrm{F} - 32}{1.8}.$$

Accepted Answer

$$-26\ ^\circ\mathrm{C}$$

Question 5

A scientist records a temperature of $$310\ \mathrm{K} in a $$reaction. What is this temperature in degrees Celsius? Use $$T_\mathrm{C} = T_\mathrm{K} - 273.$$

Accepted Answer

$$37\ ^\circ\mathrm{C}$$

Question 6

Which of the following best describes 'absolute zero'?

Accepted Answer

The lowest possible temperature, $$0\ \mathrm{K}$$, where all molecular motion theoretically stops.

Question 7

A digital thermometer reads $$38.5\ ^\circ\mathrm{C}$$ for a patient with a fever. What is this temperature in Fahrenheit? Use $$T_\mathrm{F} = 1.8T_\mathrm{C} + 32.$$

Accepted Answer

$$101.3\ ^\circ\mathrm{F}$$

Question 8

Which of the following is true about the size of a degree on the Celsius and Fahrenheit scales?

Accepted Answer

A Celsius degree is larger than a Fahrenheit degree.

Question 9

A chemical reaction must be performed at $$25.0\ ^\circ\mathrm{C}. $$What is this temperature in Kelvin? Use $$T_\mathrm{K} = T_\mathrm{C} + 273.$$

Accepted Answer

$$298\ \mathrm{K}$$

Question 10

Which temperature conversion equation is correct for converting Celsius to Fahrenheit?

Accepted Answer

$$T_\mathrm{F} = 1.8T_\mathrm{C} + 32$$

Question 11

A sample of water is at $$0\ ^\circ\mathrm{C}. $$What is the equivalent temperature in Fahrenheit and Kelvin?

Accepted Answer

$$32\ ^\circ\mathrm{F}$$ and $$273\ \mathrm{K}$$

Question 12

A scientist needs to cool a reaction mixture to $$-40\ ^\circ\mathrm{C}. $$What is this temperature in Fahrenheit? Use $$T_\mathrm{F} = 1.8T_\mathrm{C} + 32.$$

Accepted Answer

$$-40\ ^\circ\mathrm{F}$$

Question 13

Which of the following best explains why the Kelvin scale is used in scientific measurements?

Accepted Answer

It starts at absolute zero, making all temperatures positive and proportional to kinetic energy.

Question 14

A nurse records a patient's temperature as $$99.5\ ^\circ\mathrm{F}. $$What is this temperature in Kelvin? (First convert to Celsius, then to Kelvin.)

Accepted Answer

$$310\ \mathrm{K}$$

Question 15

Which of the following is NOT a correct pair of freezing and boiling points of water on the given scale?

Accepted Answer

Freezing: $$0\ \mathrm{K}$$, Boiling: $$100\ \mathrm{K}$$

Question 16

A chemical stored at $$-20\ ^\circ\mathrm{C} is $$accidentally left out at room temperature ($$25\ ^\circ\mathrm{C}). $$What is the temperature change in Kelvin?

Accepted Answer

$$45\ \mathrm{K}$$

Question 17

If a thermometer reads $$273\ \mathrm{K}$$, what is the temperature in degrees Fahrenheit? (First convert to Celsius, then to Fahrenheit.)

Accepted Answer

$$32\ ^\circ\mathrm{F}$$

Question 18

Which of the following best describes the relationship between Celsius and Kelvin temperature scales?

Accepted Answer

They have the same size degree, but different zero points.

Temperature and Temperature Scales in GOB Chemistry

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