Question

Point out the law illustrated in the following examples:. 1). bread rises while baking because CO2 is given off when yeast is heated. 2). car tyres expand on a hot day. 3). a ballon will burst if you sit on it.

Answer 1

1. Bread rises while baking because CO2 is given off when Yeast is heated.
Ans. Charles Law
Explanation: This Law states that temperature of an ideal gas is directly proportional to its volume. Therfore, if temperature is increased then volume of gas also increases.

2. Car tyres expand on a hot day.
Ans. Gay-Lussac's Law
Explanation: This law states that the pressure of a given amount of gas held at constant volume is directly proportional to the Kelvin temperature. As the temperature goes up, the pressure also goes up, and vice-versa.

3. A balloon burst it if you sit on it.
Ans. Boyle’s Law
Explanation: This Law States that the pressure and volume of a gas have an inverse relationship, when temperature is held constant. When we sit on balloon we’re decreasing volume therfore pressure must increase. When volume goes to low the ballon cannot hold and pops.

Answer 2

Answer:

It asserts that, while the volume is maintained constant, the pressure of a given amount of gas is precisely proportional to its temperature on the kelvin scale.

Explanation:

1. The temperature of an ideal gas is precisely proportional to its volume, according to Charles' Law. Therefore, as temperature rises, gas volume rises as well. Thus, bread rises while baking because CO₂ is given off when yeast is heated.

2. The pressure of a given volume of gas sustained at constant temperature is precisely proportional to the Kelvin temperature, according to Gay-law. Lussac's Pressure increases in direct proportion to temperature increases and vice versa. Thus, car tyres expand on a hot day.

3. Boyle's Law explains the answer: Under conditions of constant temperature, a gas's pressure and volume are inversely related. Since we are reducing the volume of the balloon when we sit on it, pressure must rise. The balloon pops when the volume is too low since it can't hold.

Hence, the laws for each condition are explained above.

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