Ahot metal plate at 150°c has been placed in air at room temperature. which event would most likely take place over the next few minutes?

The correct answer is that the molecules of air, which are enveloping the metal will accelerate, and the molecules in the metal will slow down.

Explanation:

At room temperature, the temperature of the metal plate is 150 degree Celsius. The vibration of the metal atoms takes place spontaneously, and the molecules of the air are also moving around. It is known that the transfer of heat takes place from a body of higher temperature to the body of lower temperature. Thus, the heat energy will be conducted from the metal plate to the molecules of air. As a consequence, the speed at which the vibration of the metal atoms was taking place initially will now go on slowing down, and at the same time, the velocity of the molecules of air will enhance in comparison to what it was before.

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"

1.solid

2.carbon dioxide

3.helium