Question

Reset Help reduce When you blow over the top of a bowl of hot soup, you increase evaporation and its cooling effect by removing the warm vapor that tends to condense and increase the net evaporation faster slower As you blow, you also increase the rate of convective cooling, replacing the hot air near the surface of the soup with cooler air increase To test the explanation involving evaporation, blow on your soup with air at different humidity levels drier air should cool the soup slower To test the explanation of convection, one can blow on the soup with a hair dryer set at different than blowing with hotter air temperatures. Blowing with cooler air will cool the soup faster Previous Answers ReauestAnswer Submit x Incorrect; Try Again; 4 attempts remaining You filled in 2 of 5 blanks incorrectly

Answer 1

SOLUTION:

PART 1:

When you blow over the top of a bowl of hot soup, you increase evaporation and its cooling effect by removing the warm vapor that tends to condense and reduce the net evaporation.

PART 2:

As you blow, you also increase the rate of convective cooling, replacing the hot air near the surface of the soup with cooler air.

PART 3:

To test the explanation involving evaporation, blow on your soup with air at different humidity levels, drier air should cool the soup faster.

PART 4:

To test the explanation of convection, one can blow on the soup with a hair dryer set at different temperatures. Blowing with cooler air will cool the soup faster than blowing with hotter air temperatures