Calorimetry & Specific Heat Lab Warm-Up

Calorimetry & Specific Heat Lab Warm-Up

By Kristy Hilt

Open Ended

Substances A and B are the same mass and at the same initial temperature. When the same amount of heat is added to each, the final temperature of A is 75 °C and B is 35 °C.

What does this tell you about the specific heats of substances A and B?

Multiple Choice

If two objects have different temperatures when they come in contact, heat will flow from the warmer object to the cooler one UNTIL ____________

• one reaches a temperature of zero

• they both have an equal temperature

• one runs out of energy

Multiple Choice

Calorimeters use insulating materials, such as Styrofoam coffee cups, to:

• encourage affordable materials in science experiments in schools.
• preserve the heat of the environment outside the Styrofoam cup.
• prevent heat from escaping to the environment.
• keep the liquid inside the Styrofoam cup from overheating.

Multiple Choice

Two metals of equal mass but different specific heats absorb the same amount of heat. Which metal undergoes the smaller change in temperature?

• the metal with the higher specific heat

• the metal with the lower specific heat

• both undergo the same change in temperature

• cannot determine from the information given

Multiple Choice

A metal cube at temperature of 70°C is immersed in water at temperature of 20°C. The metal _______ heat while the water __________ heat.

• gains, loses

• loses, gains

Multiple Choice

Calorimetry Calculation Question:

A piece of metal with a mass of 32.8 g is heated to 100.5°C and dropped into 138.2 g of water at 20.0°C. The final temperature of the system is 30.2°C. What is the specific heat capacity of the metal?

• 2.56 J/g°C

• 0.391 J/g°C

• 5.29 J/g°C

• 3.50 J/g°C

Lab: Calorimetry & Specific Heat

Materials

400 mL beaker (hot water bath)

Hot Plate

Tongs (beaker and normal)

Thermometer​

Styrofoam Calorimeter Cup​

​Throughout Lab....

​Metal Samples 1, 2, and 3

​Tap Water

Paper Towels​

Lab: Calorimetry & Specific Heat

With your lab group, determine the specific heat of 3 different metal samples to determine the identify of the metal.

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​READ THE PROCEDURES BEFORE DOING ANYTHING.

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SHOW ALL OF YOUR WORK​ WHEN CALCULATING.

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Lab worksheet is due by the end of the class period, everyone must submit their own.​