How many joules of energy are required to raise thetemperature

of 100 g of gold from 20.0 degrees celcius to 100degree

celcius?

Q=1040 KJ

Explanation:

Given that

mass, m = 100 g

We know that 1 kg = 1000 g

100 g = 0.1 kg

m = 0.1 kg

T₁=20°C

T₂=100⁰C

Specific capacity for the gold

Cp=130 KJ/kgK

The energy required to raise temperature from T₁ to T₂

Q = m Cp (T₂ - T₁)

Now by putting the values

Q = m Cp (T₂ - T₁)

Q = 0.1 x 130 (100 - 20) KJ

Q=1040 KJ

Therefore the energy required is 1040 KJ.