Sample Exercise: Adding Energy Adds Mass
A Bunsen burner adds 1000 J of heat energy to a beaker of water. What is the increase in the mass of the water?

E = 1000 J
$c = 3 × 10^{8} m/s$
Δm = ?

Question

Sample Exercise: Adding Energy Adds Mass
A Bunsen burner adds 1000 J of heat energy to a beaker of water. What is the increase in the mass of the water?

E = 1000 J
[latex]c = 3 × 10^{8} m/s[/latex]
Δm = ?

Accepted Answer

E = Δmc²

[latex]Δm = \frac{E}{c²}[/latex]

[latex]= \frac{1000 J}{(3 × 10^{8} m/s)²}[/latex]

[latex]= \frac{1000 J}{9 × 10^{16} m²/s²}[/latex]

[latex]= 1.11 × 10^{-14} kg[/latex]

Question 20.3: Sample Exercise: Adding Energy Adds Mass A Bunsen burner add...

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