Question

To prevent frost damage, 4.00 kg of (0^∘ C) water is sprayed onto a fruit tree. What is the final temperature?

a) (-4.0^∘ C)
b) (2.5^∘ C)
c) (-1.0^∘ C)
d) (0.5^∘ C)

Answer 1

The final temperature is 0°C.

Step-by-step explanation:

In order to calculate the final temperature, we need to consider the heat transfer that occurs as the water freezes. The heat transfer is given by the formula Q = mcΔT, where Q is the heat transfer, m is the mass of the water, c is the specific heat capacity of water, and ΔT is the change in temperature.

Since the water is at 0°C and it freezes, its temperature decreases to the freezing point of water, which is 0°C as well. So, there is no change in temperature, thus the final temperature is 0°C.

Therefore, the correct answer is d) (0.5^∘C).