Question

Mixture ending temperature:

a) 50 g cold sand and 100 g hot water
b) 50 g cold water and 100 g hot water
c) 100 g cold water and 100 g hot water
d) None of the above

Answer 1

The question is related to the principles of heat transfer and specific heat capacity in physics, where the final temperature of a mixture depends on the initial temperatures, specific heat capacities, and the masses of the combined substances.

Step-by-step explanation:

The question revolves around the concept of heat transfer and specific heat capacity, which are fundamental principles in physics. In the scenarios given, we are to determine the mixture's ending temperature when combining different masses of sand and water, or water with water, each at different thermal states. The specific heat capacity of a substance is the amount of heat energy required to raise the temperature of one gram of the substance by one degree Celsius. Water has a high specific heat capacity, which means it requires more energy to increase its temperature compared to sand or soil, which has a lower specific heat capacity.

For example, in a scenario where 50 g of cold sand is mixed with 100 g of hot water, the final temperature of the mixture will depend on the initial temperatures of the sand and the water, the specific heat capacities of the sand and water, and the mass of each substance. Since the specific heat capacity of water is much higher than that of sand, the final temperature will likely be closer to the initial temperature of the water.