CAIE A-Level Physics A2 14.2.3 Convert Temperatures Between Kelvin and Degrees Celsius and Recall That T Topic Practice

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Question 1

[Maximum number: 1]

A beaker contains a liquid of mass 120 g . The liquid is supplied with thermal energy at a rate of 810 W . The beaker has a mass of 42 g and a specific heat capacity of 0.84Jg−1 K−10.84 \mathrm{Jg}^{-1} \mathrm{~K}^{-1}. The beaker and the liquid are in thermal equilibrium with each other at all times and are insulated from the surroundings.

Fig. 3.2 shows the variation with time t of the temperature of the liquid.

Fig. 3.2

Fig. 3.2

State the boiling temperature, in ∘C{ }^{\circ} \mathrm{C}, of the liquid.

temperature =……… ∘C=\ldots \ldots \ldots ~{ }^{\circ} \mathrm{C}

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