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A 500g metal block is heated from 20 to 100 degrees Celsius. The specific heat capacity of the metal block is 800J/Kg degrees Celsius. How much energy was required?​

User Lihao
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1 Answer

2 votes

Answer:

20,000 Joules of energy

Step-by-step explanation:

The amount of energy required to heat the metal block can be calculated using the formula:

Q = m * c * ΔT

Where:

Q = amount of energy (in Joules)

m = mass of the metal block (in kilograms)

c = specific heat capacity of the metal block (in Joules/kg degrees Celsius)

ΔT = change in temperature (in degrees Celsius)

Substituting the given values, we get:

Q = 0.5 kg * 800 J/kg°C * (100°C - 20°C)

Q = 0.5 kg * 800 J/kg°C * 80°C

Q = 20,000 Joules

Therefore, 20,000 Joules of energy was required to heat the metal block from 20 to 100 degrees Celsius.

User Cuihtlauac
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