AP EAMCET · PHYSICS · Thermodynamics
If a gas of volume 400 cc at an initial pressure \(P\) is suddenly compressed to 100 cc, then its final pressure is
(The ratio of the specific heat capacities of the gas at constant pressure and constant volume is 1.5 )
- A \(\frac{P}{32}\)
- B 8 P
- C 32 P
- D 16 P
Answer & Solution
Correct Answer
(B) 8 P
Step-by-step Solution
Detailed explanation
\(P_1 V_1^\gamma = P_2 V_2^\gamma\) \(P_2 = P_1 \left(\frac{V_1}{V_2}\right)^\gamma\) \(P_2 = P \left(\frac{400 \text{ cc}}{100 \text{ cc}}\right)^{1.5}\) \(P_2 = P (4)^{1.5}\) \(P_2 = P (4^{3/2})\) \(P_2 = P (8)\) \(P_2 = 8P\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- The plates of a parallel plate capacitor are charged upto 200 volts. A dielectirc slab of thickness \(4 \mathrm{~mm}\) is inserted between its plates. Then, to maintain the same potential difference between the plates of the capacitor, the distance between the plates is increased by \(3.2 \mathrm{~mm}\). The dielectric constant of the dielectric slab isAP EAMCET 2004 Medium
- Three closed vessels \(A, B\) and \(C\) are at the same temperature \(T\) and contain gases. Vessel \(A\) contains only \(\mathrm{O}_2, B\) contains only \(\mathrm{N}_2\) and \(\mathrm{C}\) contains a mixture of equal quantities of \(\mathrm{O}_2\) and \(\mathrm{N}_2\). If the rms speed of \(\mathrm{O}_2\) molecules in vessel \(A\) is \(v_1\) and that of \(\mathrm{N}_2\) molecules in vessel \(B\) is \(v_2\) then the rms speed of \(\mathrm{O}_2\) molecules in vessel \(\mathrm{C}\) isAP EAMCET 2019 Hard
- In a photoelectric experiment, a graph is drawn with stopping potential along \(\mathrm{Y}\)-axis and the frequency of the incident light along \(\mathrm{X}\)-axis. If the graph is a straight line which makes an angle \(\theta\) with Y-axis, then \(\tan \theta=\) (h-planck's constant, e-charge of electron)AP EAMCET 2023 Easy
- Energy levels \(A, B, C\) of a certain atom correspond to increasing values of energy that is, \(E_A < E_B < E_C\). If \(\lambda_1, \lambda_2, \lambda_3\) are the wavelengths of radiations corresponding to the transitions \(C\) to \(B, B\) to \(A\) and \(C\) to \(A\) respectively, as shown in figure. Which of the following statement is correct?
AP EAMCET 2020 Hard - The radiation emitted by a star \(A\) is 10000 times that of the sun. If the surface temperatures of the sun and the star \(A\) are \(6000 \mathrm{~K}\) and \(2000 \mathrm{~K}\) respectively, the ratio of the radii of the star \(A\) and the sun is :AP EAMCET 2003 Easy
- A disc of mass 0.2 kg is kept floating in air without falling by vertically firing bullets each of mass 0.05 kg on the disc at the rate of 10 bullets per every second. If the bullets rebound with the same speed, then the speed of each bullet is \(\left(\right.\) Acceleration due to gravity \(\left.=10 \mathrm{~ms}^{-2}\right)\)AP EAMCET 2025 Medium
More PYQs from AP EAMCET
- Two oxides of a \(X\) contain \(50 \%\) and \(40 \%\) of non-metal respectively. If the formula of the first oxide is \(\mathrm{XO}_2\). Then the formula of second oxide isAP EAMCET 2017 Medium
- Locus of the poles of focal chord of a parabola isAP EAMCET 2002 Medium
- The area of the region lying between the curves \(y=\sqrt{4-x^2}, y^2=3 x\) and the Y-axis isAP EAMCET 2025 Medium
- If \(f(x)=\left\{\begin{array}{cc}\frac{\sqrt{a^2-a x+x^2}-\sqrt{x^2+a x+a^2}}{\sqrt{a+x}-\sqrt{a-x}}, & x \neq 0 \\ K, & x=0\end{array}\right.\), is continuous at \(x=0\), then \(K=\)AP EAMCET 2024 Medium
- If \(f(x)\) is anti-derivative of \(g(x)\) and \(\int f(x) g(x)\left(1+f^2(x)\right) d x=F(x)\), then \(F(x)=\)AP EAMCET 2022 Medium
- The mean and variance of a binomial distribution are 5 and 4 respectively. Then what is \(p(X=1)=\) ?AP EAMCET 2021 Easy