SATHEE: Thermodynamics Question 53

Thermodynamics Question 53

Question: For an adiabatic expansion of a perfect gas, the value of $\frac{Δ P}{P}$ is equal to

[CPMT 1983; MP PMT 1990]

Options:

A) $1.8 \times 10^{5} N / m^{2}$

B) $1.5 \times 10^{5} N / m^{2}$

C) $1.4 \times 10^{5} N / m^{2}$

D) $1.2 \times 10^{5} N / m^{2}$

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Answer:

Correct Answer: B

Solution:

$\frac{Adiabatic elasticicity (E_{φ})}{Isothermal elasticicity (E_{θ})} = γ$

Therefore $E_{θ} = \frac{E_{φ}}{γ}$

Therefore $E_{θ} = \frac{2.1 \times 10^{5}}{1.4}$

$= 1.5 \times 10^{5} N / m^{2}$

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Thermodynamics Question 53

Question: For an adiabatic expansion of a perfect gas, the value of ΔPP is equal to

Options:

Answer:

Solution:

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Question: For an adiabatic expansion of a perfect gas, the value of $\frac{Δ P}{P}$ is equal to