Question

A flask of water is sealed with a balloon and heated to various temperatures on a hot plate. Fill in the missing information below: T = 37 °C, T = 100 °C, T = 60°C, C energy, energy gained, B energy, energy lost, m =, m = 52g, m =.

Answer 1

At
`\( T = 37 \, ^\circ \text{C} \), the flask contains \( m = 52 \, \text{g} \)` of water. As the temperature increases to
`\( T = 60 \, ^\circ \text{C} \),` the water absorbs energy
`(\( C_\text{energy} \)), and at \( T = 100 \, ^\circ \text{C} \),` additional energy is gained
`(\( B_\text{energy} \))`. The balloon serves as an indicator; when the flask is heated, it expands due to the energy gained, demonstrating the process of energy transfer.

Step-by-step explanation:

The experiment involves heating a sealed flask of water at different temperatures, and three specific points are highlighted:
`\( T = 37 \, ^\circ \text{C} \), \( T = 60 \, ^\circ \text{C} \), and \( T = 100 \, ^\circ \text{C} \).` At
`\( T = 37 \, ^\circ \text{C} \)`, the initial temperature, the mass of water in the flask is given as
`\( m = 52 \, \text{g} \).` As the temperature increases to
`\( T = 60 \, ^\circ \text{C} \)`, the water absorbs energy
`(\( C_\text{energy} \))`without a change in temperature. This energy absorption causes the balloon to expand, indicating the transfer of energy into the system.

Moving to
`\( T = 100 \, ^\circ \text{C} \),` additional energy is gained
`(\( B_\text{energy} \))`as the water undergoes a phase change, transitioning from liquid to gas. The balloon continues to reflect this energy gain. The use of the balloon serves as a visual representation of the energy transfer, as its expansion correlates with the energy absorbed and gained during the heating process.

The given mass
`(\( m = 52 \, \text{g} \))`remains constant throughout the experiment, emphasizing the conservation of mass. In summary, the experiment demonstrates the relationship between temperature changes, energy transfer, and the physical state of water within a sealed system.