Explain the difference in pronunciation with reference to the sounds [ p, t, k ] in the following examples, show how the difference accrues examples stop and spot, tin and stone, skirt and kick

In International Phonetic Alphabet, [p, t, k] retain their own pronunciation. They are "Voiceless" when you make its sound but has puff of air called aspiration.

The pronunciation of P is like that of B but it is voiceless. Make a sudden exhale and pronounce the 'p' sound with an explosive breath. Try to pronounce 'stop' and 'spot'

- spot contains an aspirated version of / p/, with a puff of air after the stop is released; [p^h]

- stop contains a plain / p/, without a puff of air after the stop; this is written just [p]

The pronunciation of T is voiceless. Make a sudden exhale and pronounce the 't' sound with an explosive breath. Try tin and stone

- stone contains an aspirated version of / t/, with a puff of air after the stop is released; [t^h]

- tin contains a plain / t/, without a puff of air after the stop; this is written just [t]

The pronunciation of S is voiceless. Make a sudden exhale and pronounce the 's' sound with an explosive breath. Try skirt and kick

- skirt contains an aspirated version of / k/, with a puff of air after the stop is released; [k^h]

- kick contains a plain / k/, without a puff of air after the stop; this is written just [k]