Question

5.
Have a look for heating and cooling processes at your home. Observe them
carefully to find that how the heat is being transferred in these processes. Make a
chart of any five such processes along with the mechanism of heat transfer in it.​

Answer 1

Answer:

Solution: Among Mg and MgO ,only Mg gives Hydrogen gas with acid . 1 mole i.e 24gm of "Mg' gives 22.4 lit of H2 at STP. ... of Mg=2.4gm and wt of MgO in the mixture= 10-2.4= 7.6gm.

Answer 2

Answer:

Explanation:

Conduction: Heat transfers into your hands as you hold a hot cup of coffee.

Convection: Heat transfers as the barista “steams” cold milk to make hot cocoa.

Radiation: Reheating a cold cup of coffee in a microwave oven.

3 points are by me