Understanding Thermal Energy and Calorimetry

What is the primary direction of heat transfer?

• From solid to liquid

• From hot to cold

• From liquid to gas

• From cold to hot

What does a lower specific heat capacity indicate about a material?

• It requires more energy to change temperature

• It does not conduct heat at all

• It is a poor conductor of heat

• It is a better conductor of heat

What is calorimetry primarily used for?

• Measuring changes in surroundings to deduce energy transfer

• Measuring the volume of liquids

• Measuring the weight of substances

• Measuring the color of substances

What is an exothermic process?

• A process where heat is converted to light

• A process where no heat is transferred

• A process where heat is absorbed

• A process where heat is released

In the calorimetry equation, what does 'Q' represent?

• Specific heat capacity

• Mass of the substance

• Energy transferred

• Temperature change

What is the unit of specific heat capacity in the calorimetry equation?

• Joules per gram

• Joules per kilogram per degree Celsius

• Joules per liter

• Joules per meter

Why is Styrofoam used in calorimetry experiments?

• It is a good conductor of heat

• It is cheap

• It is a good insulator of heat

• It is transparent

In the Styrofoam cup experiment, what is the mass of water converted to?

• Liters

• Milliliters

• Grams

• Kilograms

What is the energy content of 2 grams of fuel if it releases 50 kilojoules?

• 25 kilojoules

• 100 kilojoules

• 50 kilojoules

• 75 kilojoules

How is the unknown mass of water determined in the advanced example problem?

• By weighing the container

• By measuring the volume directly

• By estimating visually

• By using the calorimetry equation