## anonymous one year ago The specific heat of gold is 130 C/kgK. How much energy would be required to raise a 200 gram piece from 22 deg C to 30 deg C?

1. Michele_Laino

here we have to apply the subsequent formula: $\Large Q = cm\Delta t = 130 \times 0.2 \times \left( {303 - 295} \right)$ since 22 °C degree coreepsonds to 295 K and 30 °C degree corresponds to 303 K

2. Michele_Laino

200 grams corresponds to 0.2 Kg

3. anonymous

ok! and so we get 208?

4. Michele_Laino

yes! and the right unit of measure is Cal or Kcal namely we have: 208 C or 208 Kcal

5. anonymous

ohh ok! yay so that is our solution? :O

6. Michele_Laino

yes!

7. anonymous

yay!! thank you!!:D

8. Michele_Laino

:)