If a balloon is heated, what happens to the volume of the air in the balloon if the pressure is constant? a. it decreases. b.it increases. c.it stays the same.

B. It increases.

Explanation:

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R  is the general gas constant,

T is the temperature of the gas in K.

It is clear that, at constant P, the volume of the gas (V) is directly proportional to the temperature of the gas.

V ∝ T.

So, If a balloon is heated, the volume of the air in the balloon if the pressure is constant:

B. It increases.

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