Question

if the mass of all molecules of a gas are Halves and their speed doubled then the ratio of initial and final pressure is​

Answer 1

Answer:

) If the mass is divided by 2, then: PV=1/6(nMv2) If the velocity is multiplied by 2, then: ... If the masses of all the molecules in a glass are halved and their velocities doubled, ... to initial mass if its speed is half, and the ratio of the initial and final pressure is 3:4

Explanation:

Answer 2

If the mass of all molecules of a gas are Halves and their speed doubled then the ratio of initial and final pressure is​ 1:2

From the kinetic gas equation, we get:

PV=1/3(nmv^2)

Therefore,

• P=1/3(nmv^2)/V

If m is halved and v is doubled,

• m'=m/2
• v'=2v

• P'=1/3(nm/2*4v^2)/V

Hence,

• P/P'=v^2/2v^2
• P/P'=1:2

Hence, initial pressure/final pressure=1:2