Question

2. All liquids are bad conductors of heat.

3. Liquids get heated more slowly than solids at the same temperature.

4. The air we breathe out is warmer.

5. All objects around us radiate heat to the surroundings. true or false​

Answer 1

Answer:

2.False

3.False

4.True

5.True

Answer 2

Explanation:

GIVE REASONS

1) True

Solid are good conductors of heat while liquids & gases are bad conductors. Molecules of liquids and gasestransfer heat by convection, i.e. their molecues carry the heat and move. ... And Vibration energy of particles is less easily transmitted through a liquid and thereforeliquids are usually poor conductors of heat.

2) true

Liquids expand for the same reason, but because the bonds between separate molecules are usually less tight they expand more than solids. ... Heat causes the molecules to move faster, (heat energy is converted to kinetic energy ) which means that the volume of a gas increases more than the volume of a solid or liquid.

3) true

We can say that air we breathe out is warmer, because if we breathe out on a mirror we can see droplets of water which means air is hotter compared to normal room temperature air because the room air condenses. Exhaled air is warmer than inhaled air because its the same room temperature air which we have taken in.

4) true