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AP Physics 2
9.5 Specific Heat and Thermal Conductivity
9.3 Thermal Energy Transfer and Equilibrium
AdvancedMCQGraphicalMathematicalConceptual18.7k
A line graph of Temperature T in degrees Celsius versus time t in seconds. The horizontal axis is labeled 'Time t (s)' with tick marks at 0, 100, 200, 300, 400, 500, and 600. The vertical axis is labeled 'Temperature T (\limits^\circ C)' with tick marks at 0, 20, 40, 60, 80, and 100. A solid black line starts at point (0, 20), rises linearly to (100, 80), and then extends horizontally as a flat line from (100, 80) to (500, 80). Grid lines are light gray and align with the axis tick marks. No other labels, lines, text, or axes appear.
Temperature versus time for the heated liquid sample.
A sample of an organic liquid with mass \(m = 0.20 \text{ kg}\) and specific heat capacity \(c = 2500 \text{ J/(kg}\cdot\text{K)}\) is heated in an insulated container by a resistive coil operating at a constant rate of energy transfer. The temperature \(T\) of the sample as a function of time \(t\) is shown in the graph. Based on the graph, what is the latent heat of vaporization \(L_v\) of the liquid?

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