Specific Heat Capacity Concepts

This video tutorial explains how to calculate the amount of heat absorbed or released by a system. It introduces the concept of heat capacity and specific heat capacity, demonstrating how these properties affect temperature changes. The tutorial includes an example calculation of heat absorbed by water and concludes with interesting facts about heat absorption's impact on climate.

What is the main focus of the video?

• Calculating the amount of heat absorbed or released by a system

• Calculating the speed of light

• Understanding the laws of motion

• Learning about chemical reactions

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-5

NGSS.HS-PS3-4

What happens to the temperature of the green liquid as it absorbs more heat?

• It increases

• It fluctuates randomly

• It remains constant

• It decreases

What is the relationship between the amount of heat absorbed and the change in temperature?

• They are exponentially related

• There is no relationship

• They are directly proportional

• They are inversely proportional

What does the heat capacity of a substance indicate?

• The amount of heat required to raise the temperature of the substance by one degree Celsius

• The amount of heat required to melt the substance

• The amount of heat required to evaporate the substance

• The amount of heat required to freeze the substance

Why is the heat capacity considered an extensive property?

• It depends on the shape of the substance

• It depends on the temperature of the surroundings

• It depends on the amount of matter

• It depends on the color of the substance

Tags

NGSS.HS-PS3-4

What is the specific heat capacity?

• The amount of heat required to raise the temperature of one gram of a substance by one degree Celsius

• The amount of heat required to freeze one gram of a substance

• The amount of heat required to evaporate one gram of a substance

• The amount of heat required to melt one gram of a substance

Tags

NGSS.HS-PS3-4

What is the formula for calculating the amount of heat absorbed using specific heat capacity?

• Q = mCsΔT

• Q = mCΔT

• Q = CsΔT

• Q = mΔT

Tags

NGSS.HS-PS3-4

In the example problem, what is the mass of the water sample?

• 2.0 grams

• 60.0 grams

• 4.18 grams

• 54.2 grams

What is the specific heat capacity of liquid water used in the example problem?

• 4.18 joules per gram per degree Celsius

• 54.2 joules per gram per degree Celsius

• 2.0 joules per gram per degree Celsius

• 60.0 joules per gram per degree Celsius

Tags

NGSS.HS-PS3-4

Why has Hawaii never recorded a temperature above 100 degrees Celsius?

• It has a high altitude

• It is always cloudy

• It is close to the North Pole

• It is surrounded by water which absorbs heat