Free Heat, Temperature and Gas Laws Quiz | University Admission Physics Practice

Thermal Physics: Heat, Temperature, and Gas Laws

Question 1 of 5

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A \(0.50\text{ kg}\) block of ice initially at \(-20^\circ\text{C}\) is heated by an electric heater of constant power in a well-insulated container. The graph shows how its temperature varies with time. The specific heat capacity of water is \(4200\text{ J kg}^{-1}\text{ K}^{-1}\).

Use the graph to determine the specific latent heat of fusion of ice.

Select one option.

\(1.68\times10^{5}\text{ J kg}^{-1}\)
\(3.36\times10^{5}\text{ J kg}^{-1}\)
\(3.78\times10^{5}\text{ J kg}^{-1}\)
\(2.10\times10^{3}\text{ J kg}^{-1}\)
\(6.72\times10^{5}\text{ J kg}^{-1}\)

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