This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
ScanSolve AI Answer
To calculate the total amount of energy added, we need to find the energy value on the x-axis corresponding to the final state (steam at 120°C). Step 1: Identify the initial state on the graph. The initial state is 1g of ice at -30°C. On the graph, this corresponds to the starting point of the curve, where "Energy added (J)" is 0 J. Step 2: Identify the final state on the graph. The final state is steam at 120°C. This corresponds to the end point of the curve, labeled E, where the temperature reaches 120°C. Step 3: Read the energy value at the final state from the x-axis. At point E, where the substance is steam at 120°C, the energy added is 3110 J. The total energy added is the difference between the final energy value and the initial energy value. Total energy added = Energy at 120°C steam - Energy at -30°C ice Total energy added = 3110 \, J - 0 \, J Total energy added = 3110 \, J The total amount of energy that must be added is 3110 J.