Question

Air at temperature 527degree Celsius and pressure 30 atmosphere is admitted into cylinder of an engine. Calculate the pressure of the gas when it has expanded to 5times. It's volume and cooled to 127degree Celsius as it leave the engine.

Answer 1

this is indeed a Law of Gasses question.

Then: P (1) V (1)/T (1) = P (2) V (2)/T (2)

Plug in: (30) V / 300 = (1) (5 V)/ T (2)

Solve for T (2) → T (2) = 50 K (- 173 C)