<prompt> when VaQ is INFINITY , it meansThe pO2 of alveolar air is 159mmHg and PCO2 is40mmHgpaial pressure of alveolar gas is same as deadspaePaial pressure of O2 and CO2 are equalALL TH E ABOVE  <response>: VQ IS INFINITY WHEN DEAD SPACE IS 0 REF : HARISSONS 21ST ED 