7. Energy, Rate and Equilibrium

Heat Capacity

7. Energy, Rate and Equilibrium

# Heat Capacity - Video Tutorials & Practice Problems

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Get a 10 bullets summary of the topic**Heat Capacity** is the amount of heat required to change the temperature of a substance.

Understanding Heat Capacity

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concept

## Heat Capacity

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example

## Heat Capacity Example 1

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## Heat Capacity

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example

## Heat Capacity Example 2

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concept

## Heat Capacity

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example

## Heat Capacity Example 3

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Problem

ProblemA sample of copper absorbs 3.53 kJ of heat, which increases the temperature by 25 ºC, determine the mass (in kg) of the copper sample if the specific heat capacity of copper is 0.385 J / g ºC.

A

0.73 kg

B

0.35 kg

C

0.37 kg

D

0.53 kg

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Problem

ProblemBased on their given specific heat capacities which compound would show the greatest temperature change upon absorbing 25.0 J of heat?

A

250.0 g Al

B

250.0 g Cu

C

250.0 g ethanol

D

250.0 g wood

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Problem

Problem50.00 g of heated metal ore is placed into an insulated beaker containing 822.5 g of water. Once the metal heats up the final temperature of the water is 32.08 ºC. If the metal gains 14.55 kJ of energy, what is the initial temperature of the water? The specific heat capacity of copper is 4.184 J / g ºC.

A

23.86 °C

B

32.86 °C

C

63.08 °C

D

36.31 °C

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PRACTICE PROBLEMS AND ACTIVITIES (12)

- Assuming that Coca-Cola has the same specific heat as water, how much energy in calories is removed when 350 g...
- If the same amount of heat is supplied to samples of 10.0 g each of aluminum, iron, and copper all at 15.0 °C,...
- Use the heat equation to calculate the energy, in joules and calories, for each of the following (see TABLE 3....
- Calculate the energy to heat two cubes (gold and aluminum) each with a volume of 10 cm³ from 15 °C to 25 °C. R...
- Calculate the specific heat of copper if it takes 23 cal (96 J) to heat a 5.0 g sample from 25 degree C to 75 ...
- The specific heat of fat is 0.45 cal/(g ⋅ °C) (1.9 J/g °C) and the density of fat is 0.94 g/cm^3. How much ene...
- hen 100 cal (418 J) of heat is applied to a 125 g sample, the temperature increases by 28 degree C. Calculate ...
- On a hot day, the beach sand gets hot but the water stays cool. Would you predict that the specific heat of sa...
- A metal is thought to be titanium or aluminum. When 4.7 g of the metal absorbs 11 J, its temperature rises by ...
- A metal is thought to be copper or gold. When 18 g of the metal absorbs 58 cal, its temperature rises by 35 °C...
- When 1.0 tablespoon of butter is burned or used by our body, it releases 100 kcal (100 food Calories or 418. 4...
- An archeologist finds a 1.62 kg goblet that she believes to be made of pure gold. When 1350 cal (5650 J) of he...