题目

已知反应N2(g) + 3H2(g) 2NH3(g)  在400 K下的K= 55 atm－2，请把K换算成K。 答案：分析：根据K= K(RT)给出的K和K的关系，但要注意取正确的单位。解：K= K(RT)K= K×(RT)= 55 atm－2×(0.8206 L atm / mol K × 400 K)2 = 5.9 × 104 mol－2・ L2Zhou Libo’s talk show is very funny. It often makes people_________. A. laugh        B. laughing      C. to laugh     D. laughed