Worksheet: Thermometry and Thermal Equilibrium

Q1:

Express the temperature in Kelvin.

Q2:

The boiling point of a substance is a temperature of . Express this as a Kelvin temperature.

Q3:

Celsius and Fahrenheit temperature scales are convertible using the formula . Celsius and Kelvin temperature scales are convertible using the formula .

At what Celsius temperature do the Fahrenheit and Celsius scales have the same numerical value?

At what Kelvin temperature do the Fahrenheit and Kelvin scales have the same numerical value?

Q4:

What poperty must be the same in each of two systems that are in thermal equilibrium with each other?

• AHeat capacity
• BInternal energy
• CEntropy
• DTemperature

Q5:

On a day when the temperature is , what is the Kelvin temperature?

Q6:

What is the most basic difference between a thermistor and a thermocouple?

• AA thermistor is smaller than a thermocouple.
• BA thermocouple requires a current source whereas a thermistor does not.
• CA thermocouple requires precise voltage measurements.
• DA thermistor requires a current souce whereas a thermocouple does not.
• EA thermocouple consists of two thermistors.

Q7:

The temperature in a room decreases by 40.0 degrees Fahrenheit. How many degrees Celsius does the temperature decrease by? .

Q8:

Convert the temperature to a Kelvin temperature.

Q9:

What temperature change on the Celsius scale is equivalent to a 50 degrees change on the Kelvin scale?

Q10:

What is the temperature in Fahrenheit of a temperature that is equal to 39 degrees Celsius?

.

Q11:

A person takes a reading of the temperature in a freezer using a thermometer and makes two mistakes while doing so. The first mistake is thinking that the sign of the reading is positive when it is in fact negative. The second mistake is thinking that the temperature scale used is Celsius when it is in fact Fahrenheit. The combined result of these two mistakes is that the person reads as , but it so happens that the Celsius temperature the person thinks that they have read is equal to the correct Fahrenheit temperature shown by the thermometer. What temperature does the thermometer actually read?

Q12:

What phenomenon does an alcohol-in-glass thermometer exploit to indicate changes in temperature?

• Achanges of the density of alcohol
• Btransfer of heat from the alcohol to the glass
• Cevaporation of alcohol
• Dthermal expansion of alcohol
• Ethermal expansion of glass

Q13:

Express the temperature in Kelvin.