Do yall ever get that multiple choice test where it says select the right answer and so you are pressured into getting the right
2 answers:
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Answer:
The initial temperature will be "385.1°K" as well as final will be "128.3°K".
Explanation:
The given values are:
Helium's initial volume, v₁ = 6 m³
Mass, m = 1.5 kg
Final volume, v₂ = 2 m³
Pressure, P = 200 kPa
As we know,
Work,
On putting the estimated values, we get
⇒
⇒
⇒
Now,
Gas ideal equation will be:
⇒
On putting the values. we get
⇒
⇒
⇒ (Initial temperature of helium)
and,
⇒
On putting the values, we get
⇒
⇒
⇒ (Final temperature of helium)