According to the Ideal Gas Law, as the pressure inside a balloon increases to a point that it exceeds the pressure on the outside of the balloon, which property of the balloon also increases?

Question

Options

• AColor Intensity
• BDensity
• CVolume
• DTemperature

• A
  4% (1)
• B
  13% (3)
• C
  79% (19)
• D
  4% (1)

Explanation

Volume increases because when internal pressure exceeds external pressure, the net outward force on the balloon's surface causes it to expand until the pressures equalize - this is a direct consequence of the Ideal Gas Law (PV = nRT), which shows that for a fixed amount of gas, pressure and volume are inversely related in a flexible container. Color intensity (A) is a physical appearance trait with no relationship to pressure or any gas law variable. Density (B) actually decreases as the balloon expands, since the same mass of gas now occupies a larger volume. Temperature (D) is a separate variable in the Ideal Gas Law that would need an independent energy input to change, and a pressure imbalance alone does not raise it.

Memory tip: In PV = nRT, think of P and V as a seesaw in a flexible container - when pressure pushes outward harder than the surroundings push back, the seesaw tips and Volume rises to restore balance.

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