Changes of state and the particle model

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Question 20
Medium

A concentrated solar power plant utilizes a thermal energy storage system consisting of a tank filled with liquid molten salt to store heat.

a.

Write down the equation which links density (ρ\rhoρ), mass (mmm), and volume (VVV).

[1]
b.

The storage tank holds 8,600 m38,600\text{ m}^38,600 m3 of liquid molten salt. The density of the molten salt is 1,890 kg/m31,890\text{ kg/m}^31,890 kg/m3. Calculate the mass of molten salt in the tank. Give your answer in standard form.

[2]
c.

Write down the equation which links energy transferred (EEE), power (PPP), and time (ttt).

[1]
d.

During peak demand, the thermal energy storage system can supply heat to the steam generators at a power rate of 2.4×108 W2.4 \times 10^8\text{ W}2.4×108 W for a maximum of 7.5 hours7.5\text{ hours}7.5 hours. Calculate the maximum thermal energy that can be transferred during this period. Give your answer in standard form.

[2]

Changes of state and the particle model Questions

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