Question

Avogadro’s Law. Now imagine that you open the jar and pull the balloon out. Now imagine that you put 3.00 g of the same gas in another balloon at the same pressure and temperature. (a) The volume of the second balloon is _____ times _______________than the volume of the first balloon at the same conditions. In this experiment (pressure/temperature/amount) (is/are) constant. (b) Calculate the new volume using the ideal gas law. (c) Now explain the change in volume from behavior of the gas molecules.

Answer 1

Avogadros Law states that,

At equal volumes of the gas, at same temperature and pressure, will have equal number of molecules.

Ideal gas law

PV=nRT...................... R=gas constant.

It also means that if you keep any three variables constant, the fourth one automatically becomes constant.

In th given case,

Pressure, temperature and amount of the gas is constant (P,T,n = constant), also gas is unchanged.

Means V= constant.

Hence Volume of first balloon = volume of second balloon

V₁=V₂

(a) The volume of the second balloon is one times than the volume of the first balloon at the same conditions. In this experiment (pressure/temperature/amount) (is/are) constant.

(b) Calculate the new volume using the ideal gas law.

Ideal gas law

PV=nRT...................... R=gas constant.

P,T,n= constant

Hence, Volume of first balloon = volume of second balloon

V₁=V₂

C)

Since as per the avogadros law, If P,T,V are constant then n is also constant.

V₁/n₁ =V₂/n₂

Since, V₁=V₂

then, n₁=n₂