Question

a beaker of boiling water stops boiling and eventually reaches room temperature. there is no lid on the beaker. the beaker and its content must have: a. gained thermal energy and mass from the surroundings. b. lost thermal energy and mass to the surroundings. c. gained mass from the surroundings, but lost thermal energy to the surroundings. d. gained thermal energy from the surroundings, but lost mass to the surroundings.

Explanation:

Boiling water has higher temperature than room - temperature water. Heat will flow from the hot water to the cooler surroundings, so thermal energy is lost. Also, without a lid, water evaporates, resulting in mass loss.

Answer:

B. lost thermal energy and mass to the surroundings.