Chemistry, 29.07.2019 05:30 geraldmorgan5580

Asample of methane gas, ch4(g), occupies a volume of 60.3 l at a pressure of 469 torr and a temperature of 29.3°c. what would be its temperature at a pressure of 243 torr and volume of 60.3 l?

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Answer from: albattatasraap5wymy

The temperature when the volume and pressure has changed is -116.4°C

Explanation:

To calculate the temperature when pressure and volume has changed, we use the equation given by combined gas law. The equation follows:

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1,V_1\text{ and }T_1$ are the initial pressure, volume and temperature of the gas

$P_2,V_2\text{ and }T_2$ are the final pressure, volume and temperature of the gas

We are given:

$P_1=469torr\\V_1=60.3L\\T_1=29.3^oC=[29.3+273]K=302.3K\\P_2=243torr\\V_2=60.3L\\T_2=?K$

Putting values in above equation, we get:

$\frac{469torr\times 60.3L}{302.3K}=\frac{243torr\times 60.3L}{T_2}\\\\T_2=156.63K=-116.37^oC$

Hence, the temperature when the volume and pressure has changed is -116.4°C

Answer from: Quest

mechanics (greek is that area of science concerned with the behaviour of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment. the scientific discipline has its origins in ancient greece with the writings of aristotle and archimedes[1][2][3] (see history of classical mechanics and timeline of classical mechanics). during the early modern period, scientists such as galileo, kepler, and newton laid the foundation for what is now known as classical mechanics. it is a branch of classical physics that deals with particles that are either at rest or are moving with velocities significantly less than the speed of light. it can also be defined as a branch of science which deals with the motion of and forces on objects. the field is yet less widely understood in terms of quantum theory.

explanation:

Answer from: Quest

Mass is the amount of matter in an object. weight is the measurement of the pull of gravity on an object. say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165) now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon. however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant. in conclusion it is possible for your weight to change as your mass remains constant.

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Asample of methane gas, ch4(g), occupies a volume of 60.3 l at a pressure of 469 torr and a temperat...

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