Question

Make a list of human activities and gadgets which involves the conversion of energies from one form to another. identify the energy conversion in each activity / gadgets

Answer 1

Fan = electrical energy →wind energy +sound energy + heat energy
bulb= electrical energy → light energy + heat energy
TV = electrical energy → sound energy + light energy+ heat energy
Cycle= muscular energy →kinetic energy + heat energy
eating= muscular energy→ mechanical energy + potential energy 

Answer 2

Explanation:

.

.

.

.

.

.

.

An organic compound ‘X’ is a liquid at room temperature. It is also a very good solvent and has the molecular formula C2 H6 O. on oxidation ‘X’ gives ‘Y’ which give, break effervescence on reacting with NaHCO3. X reacts with Y in the presence of conc.H2SO4to give another compound ‘Z’ which has a pleasant smell. Identify X, Y