Question

When temperature is kept constant,a fixed mass of a gas occupies 2.5l at 2 atm pressure; suddenly the gas expands to 5l, then find its new pressure​

Answer 1

Answer:

1 Pa

Explanation:

Let's convert liter to cm^3. 1 liter = 1000 cm^3

So 2.5 liter = 2.5 x 1000 = 2500 cm^3 and 5 liter = 5 x 1000 = 5000 cm^3.

Formula used to find new pressure: P1 x V1 = P2 x V2

So, 2 x 2500 = P2 x 5000

  >>  $\frac{5000}{5000}$ = P2

  >> P2 = 1 Pascal (Pa)

So, new pressure is 1 Pa

( Keep in mind if you are confused whether your answer is correct, remember that Pressure decreases as Volume increases. Here, for fixed mass and temperature, the volume increased and so the pressure decreased from 2 to 1 according to the answer we got)

Answer 2

Answer:

convert -33C into absolute zero

answer -33+273=240k