Question 1

The process of a liquid turning into a gas at its surface is called ____.

Accepted Answer

Evaporation is the process of a liquid turning into a gas at its surface.

Question 2

Evaporation is an _____ process.

Accepted Answer

The answer of Evaporation is an _____ process.
...

Question 3

Condensation is an _____ process.

Accepted Answer

Condensation is an exothermic process because it releases heat as gas turns into liquid.

Question 4

Sublimation is an _____ process.

Accepted Answer

The answer of Sublimation is an _____ process.
...

Question 5

During the process of sublimation a ____ changes directly to a ____.

Accepted Answer

During sublimation, a solid changes directly into a gas without passing through the liquid phase.

Question 6

The most abundant gas in the Earth's lower atmosphere is _____.

Accepted Answer

Nitrogen (N2) makes up about 78% of the Earth's lower atmosphere, making it the most abundant gas.

Question 7

The 2^nd most abundant gas in the Earth's lower atmosphere is _____.

Accepted Answer

Oxygen (O2) is the second most abundant gas in the Earth's lower atmosphere, making up about 21% of the atmosphere by volume.

Question 8

Approximately 0.9% of the Earth's lower atmosphere is composed of ___ and other trace gases.

Accepted Answer

Argon makes up about 0.93% of the Earth's lower atmosphere, which is approximately 0.9%, along with other trace gases.

Question 9

At a constant pressure, as the temperature of a gas increases its volume will ____.

Accepted Answer

According to Charles's Law, at constant pressure, the volume of a gas is directly proportional to its temperature. Therefore, as the temperature increases, the volume will also increase.

Question 10

At a constant pressure, as the temperature of a gas decreases its volume will ____.

Accepted Answer

According to Charles's Law, at constant pressure, the volume of a gas is directly proportional to its temperature. Therefore, as the temperature decreases, the volume also decreases.

Question 11

At a constant temperature, as the volume of a gas decreases its pressure will ____.

Accepted Answer

According to Boyle's Law, at a constant temperature, the pressure of a gas is inversely proportional to its volume. Therefore, as the volume decreases, the pressure increases.

Question 12

At a constant temperature, as the volume of a gas increases its pressure will ____.

Accepted Answer

According to Boyle's Law, at a constant temperature, the pressure of a gas is inversely proportional to its volume. Therefore, as the volume increases, the pressure decreases.

Question 13

Suppose a balloon was inflated with nitrogen gas to a volume of 1.0 L at 27^oC, then placed into a freezer kept at -23 ^oC. Once it cooled to -23^oC, the new volume of the balloon was ____ L.

Accepted Answer

Using Charles's Law (V1/T1 = V2/T2), the volume at -23°C (250K) is 0.83 L when calculated from the initial conditions (1.0 L at 300K).

Question 14

Suppose a balloon was inflated with nitrogen gas to a volume of 1.0 L at 20^oC, then placed into a freezer kept at -80^oC. Once it cooled to -80^oC, the new volume of the balloon was ____ L.

Accepted Answer

The answer of Suppose a balloon was inflated with nitrogen...

Question 15

Suppose a balloon was inflated with nitrogen gas to a volume of 1.0 L at 45^oC, then placed into a freezer kept at -80^oC. Once it cooled to -80^oC, the new volume of the balloon was ____ L.

Accepted Answer

The answer of Suppose a balloon was inflated with nitrogen...

Question 16

Suppose a balloon was inflated with nitrogen gas to a volume of 1.0 L at 80^oC, then placed into a freezer kept at -80^oC. Once it cooled to -80^oC, the new volume of the balloon was ____ L.

Accepted Answer

Charles's law states that the volume of a gas is directly proportional to its temperature. Therefore, as the temperature of the balloon decreases, its volume will also decrease. The new volume of the balloon can be calculated using the following formula:V2 = V1 * (T2 / T1)where:V1 is the initial volume of the balloon (1.0 L)T1 is the initial temperature of the balloon (80^oC)T2 is the final temperature of the balloon (-80^oC)Plugging these values into the formula, we get:V2 = 1.0 L * (-80^oC / 80^oC) = 0.55 LTherefore, the new volume of the balloon is 0.55 L.

Question 17

The coldest possible temperature known is -200^oC.

Accepted Answer

The coldest possible temperature is absolute zero, which is 0 Kelvin or -273.15°C.

Question 18

A helium-filled balloon has a volume of 1.0 L at sea level and a pressure of 760 mm-Hg, and a temperature of 30 ^oC. What is the volume of this balloon if it experienced a pressure of 600 mm-Hg at a temperature of 27 ^oC?

Accepted Answer

Using the combined gas law, (P1 * V1) / T1 = (P2 * V2) / T2, and converting temperatures to Kelvin, the volume at the new conditions is approximately 1.2 L.

Question 19

A helium-filled balloon has a volume of 1.0 L at sea level and a pressure of 760 mm-Hg, and a temperature of 30 ^oC. What is the volume of this balloon if it experienced a pressure of 850 mm-Hg at a temperature of 80 ^oC?

Accepted Answer

The answer of A helium-filled balloon has a volume of...

Question 20

A helium-filled balloon has a volume of 1.0 L at sea level and a pressure of 760 mm-Hg, and a temperature of 30 ^oC. What is the volume of this balloon if it experienced a pressure of 850 mm-Hg at a temperature of 140 ^oC?

Accepted Answer

The answer of A helium-filled balloon has a volume of...

Quiz 6: Physical and Chemical Changes

The process of a liquid turning into a gas at its surface is called ____.

Evaporation is an _____ process.

Condensation is an _____ process.

Sublimation is an _____ process.

During the process of sublimation a changes directly to a .

The most abundant gas in the Earth's lower atmosphere is _____.

The 2^nd most abundant gas in the Earth's lower atmosphere is _____.

Approximately 0.9% of the Earth's lower atmosphere is composed of ___ and other trace gases.

At a constant pressure, as the temperature of a gas increases its volume will ____.

At a constant pressure, as the temperature of a gas decreases its volume will ____.

At a constant temperature, as the volume of a gas decreases its pressure will ____.

At a constant temperature, as the volume of a gas increases its pressure will ____.

Suppose a balloon was inflated with nitrogen gas to a volume of 1.0 L at 27^oC, then placed into a freezer kept at -23 ^oC. Once it cooled to -23^oC, the new volume of the balloon was ____ L.

Suppose a balloon was inflated with nitrogen gas to a volume of 1.0 L at 20^oC, then placed into a freezer kept at -80^oC. Once it cooled to -80^oC, the new volume of the balloon was ____ L.

Suppose a balloon was inflated with nitrogen gas to a volume of 1.0 L at 45^oC, then placed into a freezer kept at -80^oC. Once it cooled to -80^oC, the new volume of the balloon was ____ L.

Suppose a balloon was inflated with nitrogen gas to a volume of 1.0 L at 80^oC, then placed into a freezer kept at -80^oC. Once it cooled to -80^oC, the new volume of the balloon was ____ L.

The coldest possible temperature known is -200^oC.

A helium-filled balloon has a volume of 1.0 L at sea level and a pressure of 760 mm-Hg, and a temperature of 30 ^oC. What is the volume of this balloon if it experienced a pressure of 600 mm-Hg at a temperature of 27 ^oC?

A helium-filled balloon has a volume of 1.0 L at sea level and a pressure of 760 mm-Hg, and a temperature of 30 ^oC. What is the volume of this balloon if it experienced a pressure of 850 mm-Hg at a temperature of 80 ^oC?

A helium-filled balloon has a volume of 1.0 L at sea level and a pressure of 760 mm-Hg, and a temperature of 30 ^oC. What is the volume of this balloon if it experienced a pressure of 850 mm-Hg at a temperature of 140 ^oC?

Quiz 6: Physical and Chemical Changes

The process of a liquid turning into a gas at its surface is called ____.

Evaporation is an _____ process.

Condensation is an _____ process.

Sublimation is an _____ process.

During the process of sublimation a ____ changes directly to a ____.

The most abundant gas in the Earth's lower atmosphere is _____.

The 2nd most abundant gas in the Earth's lower atmosphere is _____.

Approximately 0.9% of the Earth's lower atmosphere is composed of ___ and other trace gases.

At a constant pressure, as the temperature of a gas increases its volume will ____.

At a constant pressure, as the temperature of a gas decreases its volume will ____.

At a constant temperature, as the volume of a gas decreases its pressure will ____.

At a constant temperature, as the volume of a gas increases its pressure will ____.

Suppose a balloon was inflated with nitrogen gas to a volume of 1.0 L at 27oC, then placed into a freezer kept at -23 oC. Once it cooled to -23oC, the new volume of the balloon was ____ L.

Suppose a balloon was inflated with nitrogen gas to a volume of 1.0 L at 20oC, then placed into a freezer kept at -80oC. Once it cooled to -80oC, the new volume of the balloon was ____ L.

Suppose a balloon was inflated with nitrogen gas to a volume of 1.0 L at 45oC, then placed into a freezer kept at -80oC. Once it cooled to -80oC, the new volume of the balloon was ____ L.

Suppose a balloon was inflated with nitrogen gas to a volume of 1.0 L at 80oC, then placed into a freezer kept at -80oC. Once it cooled to -80oC, the new volume of the balloon was ____ L.

The coldest possible temperature known is -200oC.

A helium-filled balloon has a volume of 1.0 L at sea level and a pressure of 760 mm-Hg, and a temperature of 30 oC. What is the volume of this balloon if it experienced a pressure of 600 mm-Hg at a temperature of 27 oC?

A helium-filled balloon has a volume of 1.0 L at sea level and a pressure of 760 mm-Hg, and a temperature of 30 oC. What is the volume of this balloon if it experienced a pressure of 850 mm-Hg at a temperature of 80 oC?

A helium-filled balloon has a volume of 1.0 L at sea level and a pressure of 760 mm-Hg, and a temperature of 30 oC. What is the volume of this balloon if it experienced a pressure of 850 mm-Hg at a temperature of 140 oC?

During the process of sublimation a changes directly to a .

The 2^nd most abundant gas in the Earth's lower atmosphere is _____.

Suppose a balloon was inflated with nitrogen gas to a volume of 1.0 L at 27^oC, then placed into a freezer kept at -23 ^oC. Once it cooled to -23^oC, the new volume of the balloon was ____ L.

Suppose a balloon was inflated with nitrogen gas to a volume of 1.0 L at 20^oC, then placed into a freezer kept at -80^oC. Once it cooled to -80^oC, the new volume of the balloon was ____ L.

Suppose a balloon was inflated with nitrogen gas to a volume of 1.0 L at 45^oC, then placed into a freezer kept at -80^oC. Once it cooled to -80^oC, the new volume of the balloon was ____ L.

Suppose a balloon was inflated with nitrogen gas to a volume of 1.0 L at 80^oC, then placed into a freezer kept at -80^oC. Once it cooled to -80^oC, the new volume of the balloon was ____ L.

The coldest possible temperature known is -200^oC.

A helium-filled balloon has a volume of 1.0 L at sea level and a pressure of 760 mm-Hg, and a temperature of 30 ^oC. What is the volume of this balloon if it experienced a pressure of 600 mm-Hg at a temperature of 27 ^oC?

A helium-filled balloon has a volume of 1.0 L at sea level and a pressure of 760 mm-Hg, and a temperature of 30 ^oC. What is the volume of this balloon if it experienced a pressure of 850 mm-Hg at a temperature of 80 ^oC?

A helium-filled balloon has a volume of 1.0 L at sea level and a pressure of 760 mm-Hg, and a temperature of 30 ^oC. What is the volume of this balloon if it experienced a pressure of 850 mm-Hg at a temperature of 140 ^oC?