Use the kinetic-molecular theory to explain the following Why the pressure of a

Question

Use the kinetic-molecular theory to explain the following Why the pressure of a gas doubles if its volume is reduced to half at constant temperature? PV = c any thing that happens to p(pressure) has to be un done Why the pressure of a gas is increased if the gas is heated in a closed, rigid container? Why oxygen can be added to a rigid container which is filled with nitrogen? because then are immiscible Why a helium filled rubber balloon will collapse quicker than if it was filled with nitrogen? molecular weight of helium is less than N Horogen Why some gases will liquefy more readily than others? because of the difference in their compressibility factors Why gases deviate from the gas laws at low temperature and high pressure Explain why the volumes of real gases actually do not become zero at absolute zero. Which gas will diffuse faster. H_2 or He? Shown, by way of a calculation, how many times faster.

Explanation / Answer

When a gas is heated with in clossed container, the kinetic energies of the molecules increases and so does the velocity. so they collide with the wallas of the container more and hence the pressure rises.

4. As per Graham's Law of diffusion

Rate of diff. of H2/ Rate of diff. of He = (Molecular Wt. of He/ Molecular Wt. of H2)1/2

Rate of diff. of H2/ Rate of diff. of He = (4/ 2)1/2 = 21/2 = 1.414

So rate of diffusion of H2 is 1.414 times higher than that of He

Related Questions

Navigate

• Browse (All)
• Browse U
• Subjects

---

---

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