... PAGEANSWER IN THE SPACES PROVIDED(JUN12PHYA52C 01) WMP /Jun12/ PHYA5/2CPHYA5/2CCentre NumberSurnameOther NamesCandidate SignatureCandidate NumberGeneral Certificate of EducationAdvanced ... 10 –5m3.Calculate the pressure of the air in the barrel at the instant the cork is expelled. Assume that the air is compressed adiabatically.adiabatic index, γ, for air = 1. 4answer = Pa(2 marks) 1 ... your ability to:– use good English– organise information clearly– use specialist vocabulary where appropriate.For this paper you must have:l a calculatorl a rulerl a Data and Formulae Booklet...