Answer:
![T_{2}=278.80 K](https://tex.z-dn.net/?f=T_%7B2%7D%3D278.80%20K%20)
Explanation:
Let's use the equation that relate the temperatures and volumes of an adiabatic process in a ideal gas.
.
Now, let's use the ideal gas equation to the initial and the final state:
![\frac{p_{1} V_{1}}{T_{1}} = \frac{p_{2} V_{2}}{T_{2}}](https://tex.z-dn.net/?f=%5Cfrac%7Bp_%7B1%7D%20V_%7B1%7D%7D%7BT_%7B1%7D%7D%20%3D%20%5Cfrac%7Bp_%7B2%7D%20V_%7B2%7D%7D%7BT_%7B2%7D%7D)
Let's recall that the term nR is a constant. That is why we can match these equations.
We can find a relation between the volumes of the initial and the final state.
![\frac{V_{1}}{V_{2}}=\frac{T_{1}p_{2}}{T_{2}p_{1}}](https://tex.z-dn.net/?f=%20%5Cfrac%7BV_%7B1%7D%7D%7BV_%7B2%7D%7D%3D%5Cfrac%7BT_%7B1%7Dp_%7B2%7D%7D%7BT_%7B2%7Dp_%7B1%7D%7D)
Combining this equation with the first equation we have:
![(\frac{T_{1}p_{2}}{T_{2}p_{1}})^{\gamma -1} = \frac{T_{2}}{T_{1}}](https://tex.z-dn.net/?f=%28%5Cfrac%7BT_%7B1%7Dp_%7B2%7D%7D%7BT_%7B2%7Dp_%7B1%7D%7D%29%5E%7B%5Cgamma%20-1%7D%20%3D%20%5Cfrac%7BT_%7B2%7D%7D%7BT_%7B1%7D%7D)
![(\frac{p_{2}}{p_{1}})^{\gamma -1} = \frac{T_{2}^{\gamma}}{T_{1}^{\gamma}}](https://tex.z-dn.net/?f=%28%5Cfrac%7Bp_%7B2%7D%7D%7Bp_%7B1%7D%7D%29%5E%7B%5Cgamma%20-1%7D%20%3D%20%5Cfrac%7BT_%7B2%7D%5E%7B%5Cgamma%7D%7D%7BT_%7B1%7D%5E%7B%5Cgamma%7D%7D)
Now, we just need to solve this equation for T₂.
![T_{1}\cdot (\frac{p_{2}}{p_{1}})^{\frac{\gamma - 1}{\gamma}} = T_{2}](https://tex.z-dn.net/?f=T_%7B1%7D%5Ccdot%20%28%5Cfrac%7Bp_%7B2%7D%7D%7Bp_%7B1%7D%7D%29%5E%7B%5Cfrac%7B%5Cgamma%20-%201%7D%7B%5Cgamma%7D%7D%20%3D%20T_%7B2%7D%20)
Let's assume the initial temperature and pressure as 25 °C = 298 K and 1 atm = 1.01 * 10⁵ Pa, in a normal conditions.
Here,
Finally, T2 will be:
![T_{2}=278.80 K](https://tex.z-dn.net/?f=T_%7B2%7D%3D278.80%20K%20)
Answer:
not clear pic...but it's definitely not A)
Answer:
27 m/s
Explanation:
Given:
v₀ = 15 m/s
a = 3 m/s²
t = 4 s
Find: v
v = at + v₀
v = (3 m/s²) (4 s) + (15 m/s)
v = 27 m/s
Answer:
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Explanation:
Answer:
Yes Newton's laws apply to small objects
EX: Newton s first law
when body at rest always want to be at rest
or body at motion always want to be at motion
unles an external force acts upon it
for example a eraser on the table will be at rest
if so e apply some force then it comes motion
so, Newton s law apply to small object s