In the above reaction, a 5.00 L sample of H_2O (g)reacts at a temperature of 375

Question

In the above reaction, a 5.00 L sample of H_2O (g)reacts at a temperature of 375 degree C and a pressure of 725 mmHg. How many grams of NH3 can be produced 1.60 g 3.20 g 1.02 g 0.954 g 0.160 g Calculate the rms speed of the molecules in a sample of N2 gas at 25 degreeC. 3.00 Times 10^2 m/s 6.23 Times 10^3 m/s 5.15 Times 10^2 m/s 1.36 Times 103 m/s Two balloons have the same volume at the same temperature. One of the balloons has He gas and another has Ar gas. If there is a pinhole on the balloons, which balloon will get smaller faster? The balloon with Ar gas The balloon with He gas Both balloons get smaller at the same speed. The size of the balloons will not change. At what conditions the real gases will behave like ideal gases? low P, high T high P, lowT high P, high T low P, low T Briefly explain the significance of the constant a and b in the van der Waals equation, (do not need to turn in).

Explanation / Answer

15. rms speed of N2 = sq.rt.(3RT/M)

= sq.rt.(3 x 8.314 x (25+273)/28 x 10^-3)

= 5.15 x 10^2 m/s

So the answer here is

c. 5.515 x 10^2 m/s

16. If two balloons are filled with He and Ar, the balloon which would get smaller faster through pinhole leak would be,

b. The balloon with He gas

He has higher rms speed than Ar and would deflate faster.

17. Real gases behave like ideal gas at,

a. low P, high T

Under these conditions gas molecules are maximum apart and no interaction between molecules exists.

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.