Question

imagine a closed metal container containing only air. It has rigid walls. Suppose heat is supplied to it by putting it over a flame. Which of the following quantity will not remajh constant regarding above?

a. Volume
b. Temperature
c. Pressure on the walls of the container
d. Speed of molecules ​

Answer 1

Answer:

Correct option is

C

300∘

Initially mass of air is 200 - 100 = 100gm. finally mass of air is 150 - 100 = 50 gm. As there is a hole in the wall, pressure inside the  container will remain constant = P0

PV=nRT⇒T∝n1

as number of moles of gas is halved, the temperature should be doubled (in K)

Ti=300K So, Tf=600K⇒ΔT=300K=300∘C

Answer 2

Answer:

option d speed of molecules

hope it helps you