Which of these best describes how the kinetic energy of carbon dioxide molecules change as the carbon dioxide is heated? a. kinetic energy decreases. b. kinetic energy increases. c. kinetic energy increases then decreases. d. kinetic energy decreases then increases

The correct answer is Option B.

Explanation:

Kinetic energy is defined as the energy which is possessed by the motion of a particle. The formula for the kinetic energy follows:

where, R = Gas Constant

T = Temperature

From above expression, kinetic energy is directly proportional to temperature of the system

As the temperature is increases, the kinetic energy of the particles also increases and vice-versa.

In the given question,

The gas (carbon-dioxide) is heated which means the temperature of the gas is increases and hence, the kinetic energy will also be increased.

Hence, the correct answer is Option B.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .