Question

A styrofoam bucket of negligible mass contains 1.80 kg of water and 0.455 kg of ice. more ice, from a refrigerator at -14.8 ∘c , is added to the mixture in the bucket, and when thermal equilibrium has been reached, the total mass of ice in the bucket is 0.780 kg .assuming no heat exchange with the surroundings, what mass of ice was added?

Answer 1

To determine the mass of ice added to reach thermal equilibrium in the bucket, subtract the initial ice mass (0.455 kg) from the final ice mass (0.780 kg), resulting in 0.325 kg of ice being added.

Step-by-step explanation:

The original question asked is: more ice, from a refrigerator at -14.8 °C, is added to the mixture in the bucket, and when thermal equilibrium has been reached, the total mass of ice in the bucket is 0.780 kg. Assuming no heat exchange with the surroundings, what mass of ice was added?

We are given that initially there is 0.455 kg of ice in the bucket. After equilibrium, the ice mass is 0.780 kg. The amount of ice added would be the difference between the final mass of ice and the initial mass of ice, which can be calculated as 0.780 kg - 0.455 kg = 0.325 kg.

The mass of ice added to the mixture in the bucket is therefore 0.325 kg, assuming no heat exchange with the surroundings.