Question

indicate if the process is exothermic or endothermic. the system is a house on a cold day. choose the system are eggs cooking on a stove choose exothermic endothermic the system is liquid water in an ice cube tray in the freezer. choose the system is your body in a hot tube. choose the system has an energy difference of -35 kj choose

Explanation:

• For the house on a cold day: The house (system) gains heat (from a heater, for example), so it is endothermic.
• For eggs cooking on a stove: The eggs (system) absorb heat from the stove, so it is endothermic.
• For liquid water in an ice - cube tray in the freezer: The water (system) loses heat to freeze (exothermic processes release heat), so it is exothermic.
• For the body in a hot - tube: The body (system) gains heat from the hot - tube, so it is endothermic.
• For a system with an energy difference of \(- 35\space kJ\): A negative energy difference (\(\Delta E=E_{final}-E_{initial}<0\)) means the system loses energy (releases heat), so it is exothermic.

Answer:

• The system is a house on a cold day: endothermic
• The system are eggs cooking on a stove: endothermic
• The system is liquid water in an ice cube tray in the freezer: exothermic
• The system is your body in a hot tube: endothermic
• The system has an energy difference of - 35 kJ: exothermic