• # question_answer The ratio ${{C}_{p}}/{{C}_{v}}$ for ${{H}_{2}}$ is A) 1.40 B) 1.67 C) 1.33 D) None of these

For diatomic gases (e.g. ${{H}_{2}}$) $r={{C}_{p}}/{{C}_{v}}=1.40$ For monoatomic gases $r=1.66$ For triatomic gases $r=1.33$