Question

When the bulb of a constant volume gas thermometer is placed in a beaker of boiling water at 100 degrees Celsius, the pressure of the gas is 229 mmHg. When the bulb is moved to an ice-salt mixture, the pressure of the gas drops to 162 mmHg. Assuming:

a) Charles's Law
b) Boyle's Law
c) Gay-Lussac's Law
d) Avogadro's Law

Answer 1

Using Gay-Lussac's Law, the problem relates to finding the pressure-temperature relationship of a gas at constant volume and demonstrates applying this gas law to real-life situations.option c is correct

Step-by-step explanation:

option c is correct The question involves using a constant volume gas thermometer and relates to the gas laws in Physics, specifically Guy-Lussac's Law, which states that the pressure of a gas held at constant volume is directly proportional to its Kelvin temperature. The student provided pressure readings at two different temperatures: 229 mmHg at 100 degrees Celsius (boiling water) and 162 mmHg at a freezing mixture temperature.

By applying Guy-Lussac's Law, one can relate the two sets of conditions, assuming the volume and amount of gas remain constant. Since this law involves pressure-temperature relationships at constant volume, it is necessary to convert the Celsius temperature to Kelvin for the calculations.