If the specific heat of aluminum is 899 J/kg °C and the specific heat of water is 4190 J/kg °C, which of the following statements is true? It takes more energy to heat 1 kg of water 1°C than it does to heat the same amount of aluminum. It is impossible to heat water to a high temperature because it requires too much energy. It takes more energy to heat 1 kg of aluminum 1°C than it does to heat the same amount of water. Aluminum produces more energy than water does when it is heated.

Question

Physics

Lea

19 December, 04:33

If the specific heat of aluminum is 899 J/kg °C and the specific heat of water is 4190 J/kg °C, which of the following statements is true? It takes more energy to heat 1 kg of water 1°C than it does to heat the same amount of aluminum. It is impossible to heat water to a high temperature because it requires too much energy. It takes more energy to heat 1 kg of aluminum 1°C than it does to heat the same amount of water. Aluminum produces more energy than water does when it is heated.

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Jayvon Saunders · Answer 1

Al: Cs = 899 J / (kg*°C) means that Aluminum requires 899 joules of heat to increase the temperature of 1 kg in 1°C.

Water: Cs = 4190 J / (kg * °C) means that water requires 4190 joules of heat to increase the temperature of 1 kg in 1°C.

Then, the answer is concluded directly from above explanations of what specific heat means for Al and water:" It takes more energy to heat 1 kg of water 1°C than it does to heat the same amount of aluminum"