The final temperature of 1 liter of 40°C water poured into 1 liter of 20°C water is

Question

Quizplus · Accepted Answer

When two different temperatures of water are mixed together, they will reach a final temperature somewhere between the original temperatures. This final temperature can be calculated using the formula:

(final temperature) = (mass of first substance x temperature of first substance) + (mass of second substance x temperature of second substance) / (total mass of both substances)

Using this formula, we can calculate the final temperature of the two liters of water:

(1 kg x 40°C) + (1 kg x 20°C) / (2 kg) = 30°C

Therefore, the final temperature of the mixture will be around 30°C, which is answer choice B.

The Final Temperature of 1 Liter of 40°C Water Poured