Ask Question
6 December, 23:03

The student places 0.5 kg of potato into a pan of water.

During cooking, the temperature of the potato increases from 20 °C to 100 °C

The specific heat capacity of the potato is 3400 J/kg °C

Calculate the change in thermal energy of the potato.

Use the equation:

change in thermal energy = mass * specific heat capacity temperature change

[3 marks]

+1
Answers (1)
  1. 6 December, 23:22
    0
    136000 J or 136 kJ

    Explanation:

    Formula

    Heat = m * c * deltaH

    Givens

    m = 0.5 kg

    c = 3400 J / (kg * oC)

    Deltat = (100oC - 20oC)

    deltat = 80oC

    Solution

    Heat = 0.5 kg * 3400 J / (kg * oC) * 80oC

    Heat = 136000 Joules

    Heat = 136 kg

    Technically there is only 1 place of accuracy.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “The student places 0.5 kg of potato into a pan of water. During cooking, the temperature of the potato increases from 20 °C to 100 °C The ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers