The Question is from neet-chemistry , and it was created by the author THIRUPATHI REDDY

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Use of hot air balloons in sports and meteorological observations is an application of:

THIRUPATHI REDDY · Accepted Answer

## CORE INFORMATION\n✓ **Answer**: [Option C]\n## CONCEPT FRAMEWORK\n\t**Primary Concept**: Charles' Law\n\t**Related Topics**: Gas laws, buoyancy, thermodynamics\n\t**Prerequisites**: Understanding of gas behavior under temperature changes\n## SOLUTION PATHWAY\n**Given Information**:\n\t\t- Hot air balloons rely on the principle of buoyancy.\n\t\t- The gas inside the balloon expands when heated.\n**Method & Steps**:\n\t1. Identify the relationship between temperature and volume of gas.\n\t\tReasoning: According to Charles' Law, the volume of a gas is directly proportional to its absolute temperature at constant pressure.\n\t\tFormula/Rule: $ V \propto T $ or $ \frac{V_1}{T_1} = \frac{V_2}{T_2} $\n\t2. Apply this principle to hot air balloons.\n\t\tWorking: As the air inside the balloon is heated, its temperature increases, leading to an increase in volume, which causes the balloon to rise.\n\t\tKey Point: The increase in volume reduces the density of the air inside the balloon compared to the surrounding cooler air.\n\t3. Conclude the application of Charles' Law in real-life scenarios like sports and meteorological observations.\n\t\tResult: The balloon rises due to the lower density of the heated air.\n\t\tVerification: This principle is widely used in hot air ballooning.\n ## OPTION ANALYSIS\n[A] :x: Boyle’s law deals with the volume and pressure of a gas at constant temperature, not applicable here.\n[B] :x: Newtonic law pertains to motion and forces, not directly applicable to gas behavior in balloons.\n[C] ✓: Charles’ law explains the behavior of gases when heated, directly applicable to the functioning of hot air balloons.\n[D] :x: Brown's law is not a recognized principle in the context of gas behavior.\n ## LEARNING AIDS\n\t**Common Mistakes**:\n\t\t1. Confusing Boyle’s law with Charles' law: Remember that Boyle’s law involves pressure and volume at constant temperature, while Charles' law involves volume and temperature at constant pressure.\n\t\t2. Overlooking the role of density in buoyancy: Understand that it’s the difference in density between the hot air and cooler air that causes the balloon to rise.\n\t**Quick Tips**:\n\t\t1. Use the phrase 'hot air rises' to remember the principle behind hot air ballooning.\n\t\t2. Recall that in Charles' Law, temperature must always be in Kelvin for calculations.

THIRUPATHI REDDY · Answer

Boyle’s law

THIRUPATHI REDDY · Answer

Newtonic law

THIRUPATHI REDDY · Answer

The correct Option is "Charles’ law "

THIRUPATHI REDDY · Answer

Brown’s law

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