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Calculate the amount of heat required to heat a 3.5 kg gold bar from 21c to 67c

User Spluf
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1 Answer

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Answer:

to heat a 3.5 kg gold bar from 21°C to 67°C is approximately 21387 Joules.

Step-by-step explanation:

To calculate the heat required to heat a substance, you can use the formula:

Q = m * c * ΔT

Where:

Q = Heat energy (in Joules)

m = Mass of the substance (in kilograms)

c = Specific heat capacity of the substance (in J/kg°C)

ΔT = Change in temperature (in °C)

For gold, the specific heat capacity (c) is approximately 129 J/kg°C.

Given:

m = 3.5 kg

c = 129 J/kg°C

ΔT = 67°C - 21°C = 46°C

Plug the values into the formula:

Q = 3.5 kg * 129 J/kg°C * 46°C

Q = 21387 J

So, the amount of heat required to heat a 3.5 kg gold bar from 21°C to 67°C is approximately 21387 Joules.

User Miller Zhu
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