Question

jan is holding an ice cube. what causes the ice to melt? thermal energy from the ice is transferred to the air. thermal energy from jan’s hand is transferred to the ice. the air absorbs thermal energy from jan’s hand. jan’s hand absorbs thermal energy from the ice.

Answer 1

Answer: Option (b) is the correct answer.

Step-by-step explanation:

The energy of an atom or substance because of the motion of its particles is known as thermal energy.

So, when Jan is holding an ice cube, then due to the transfer of thermal energy from Jan's hand the ice, molecules of ice will start to move rapidly and thus, ice will start to melt.

That is, solid state of water (ice) will change into liquid state.

Thus, we can conclude that when Jan is holding an ice cube then ice melts because thermal energy from Jan’s hand is transferred to the ice.

Answer 2

Answer: Ice is melting due to the transfer of thermal energy from Jan's hand to ice.

Step-by-step explanation: The melting of ice is a physical change and is happening when the thermal energy from Jan's hand is transferred to ice. Due to this energy transfer, the particles of ice starts to move faster and hence, making the ice melt.

In this, the physical state of ice is changing from solid to liquid state.

`H_2O(s)\rightleftharpoons H_2O(l)`