For your first question, that equation only works if your situation is occurring at a constant temperature. Your original question is such a situation - everything occurs at 298.15 K. Therefore, you can use this value in the equation to calculate work.
For your second question, Charles' Law describes how the volume of gas changes as you heat or cool it, PROVIDED PRESSURE AND MOLES OF GAS REMAIN CONSTANT THE WHOLE TIME. In your original question above, temperature stays constant while volume changes. However, what they don't tell you is that this necessarily requires a change in either pressure or moles of gas. Because the question works with the same sample the of gas the whole time (i.e. moles are constant), it is pressure that is changing (and this change will occur according to Boyle's Law, since temperature and moles are held constant).
Hope that clarifies things!
Explanation:
Hey there!
According to the law of gravitation, the factors that affects the gravity are:
- Mass of the heavenly bodies.
- Distance from the centre of the body to next body.
Mass of heavenly bodies:<em>The </em><em>ma</em><em>s</em><em>s </em><em>of </em><em>heavenly</em><em> bodies</em><em> </em><em>affect</em><em> </em><em>the </em><em>gravity</em><em>.</em><em> </em><em>We </em><em>know </em><em>that </em><em>gravity</em><em> is</em><em> </em><em>directly</em><em> proportional</em><em> to</em><em> the</em><em> </em><em>mass </em><em>of</em><em> heavenly</em><em> bodies</em><em>.</em><em> </em><em>so,</em><em> </em><em>when </em><em>the </em><em>mass </em><em>is </em><em>more </em><em>there </em><em>is </em><em>more </em><em>gravity </em><em>and </em><em>where</em><em> </em><em>there </em><em>is </em><em>less </em><em>mass </em><em>there </em><em>is </em><em>less </em><em>gravity</em><em>.</em>
Distance from the centre of the body to next body: <em>It </em><em>is</em><em> </em><em>one </em><em>of</em><em> the</em><em> </em><em>factor </em><em>to </em><em>influence</em><em> </em><em>gravity</em><em>.</em><em> </em><em>When </em><em>there </em><em>is</em><em> </em><em>more </em><em>distance</em><em> </em><em>there </em><em>is</em><em> </em><em>less </em><em>gravity</em><em> </em><em>and </em><em>where </em><em>there </em><em>is </em><em>distance</em><em> </em><em>more </em><em>force </em><em>is </em><em>there.</em><em> </em><em>Is </em><em>means </em><em>gravity</em><em> is</em><em> </em><em>inversely</em><em> proportional</em><em> to</em><em> </em><em>the </em><em>distance</em><em> </em><em>between </em><em>the </em><em>bodies</em><em>.</em>
<em><u>Hope </u></em><em><u>it</u></em><em><u> helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
Answer:
is insufficient to overcome intermolecular forces.
Explanation:
and D. to identify minerals
