Specific Heat, Calorimetry and Change of State

Name: Specific Heat, Calorimetry and Change of State
Author: StemPy Lab

Water in a pan takes minutes to heat, and a metal spoon in it becomes hot in seconds. Ice at 0 degrees cools a drink much more than water at 0 degrees. In this course we define the specific heat, we use the method of mixtures to find an unknown temperature or specific heat, and we find the heat that is needed to melt a solid and to boil a liquid, with the latent heat.

3 lessons, about 1 h 10 min3 simulations12 problems6 practice questionsPython in every lesson

Created by StemPy Lab

Course outline (3 lessons)

Lesson 1about 20 min
Specific heat capacity
The heat that warms a body is $Q = mc\,\Delta T$ , where $c$ is the specific heat capacity of its material, in $\text{J kg}^{-1}\text{K}^{-1}$ . A body's heat capacity is $mc$ . Water's specific heat, $4186\ \text{J kg}^{-1}\text{K}^{-1}$ , is unusually large, which steadies climates and makes water good for carrying heat.
1 simulation2 practice questions1 Python program4 problems1 question set
Read the lesson
Lesson 2about 25 min
Calorimetry and the method of mixtures
When hot and cold bodies are mixed in a well-insulated calorimeter, the heat lost by the hot ones equals the heat gained by the cold ones. This method of mixtures finds final temperatures and unknown specific heats. A calorimeter's water equivalent, $\dfrac{m_cc_c}{c_w}$ , is the mass of water that would take the same heat.
1 simulation2 practice questions1 Python program4 problems1 Python lab
Read the lesson
Lesson 3about 25 min
Change of state and latent heat
While a substance melts or boils, its temperature stays steady: the heat, the latent heat, goes into changing its state. $Q = mL$ , with $L_f = 3.34 \times 10^{5}\ \text{J/kg}$ for ice and $L_v = 2.26 \times 10^{6}\ \text{J/kg}$ for water. Pressure changes boiling points, and evaporation cools.
1 simulation2 practice questions1 Python program4 problems1 Python lab1 note
Read the lesson

Test Your Learning

Calorimetry and Change of State: Practice Paper

20 questions · 50 min

Not started

Your teacher

StemPy Lab

← Thermal Properties of Matter

← Temperature, Gases and Thermal Expansion Heat Transfer →

More onHeat & Thermodynamics › Calorimetry and Change of State

Discussion (0)

Loading…

Specific Heat, Calorimetry and Change of State

Course outline (3 lessons)

Specific heat capacity

Calorimetry and the method of mixtures

Change of state and latent heat

Test Your Learning

Your teacher

Discussion (0)