AP EAMCET · PHYSICS · Kinetic Theory of Gases
A gaseous mixture consists of 2 moles of oxygen and 4 moles of argon at an absolute temperature \(T\). Neglecting all vibrational modes, the total internal energy of the mixture of the gases is
- A 4 RT
- B 15 RT
- C 9 RT
- D 11 RT
Answer & Solution
Correct Answer
(D) 11 RT
Step-by-step Solution
Detailed explanation
\(U_{O_2} = \frac{f_{O_2}}{2} n_{O_2} RT = \frac{5}{2} (2) RT = 5 RT\) \(U_{Ar} = \frac{f_{Ar}}{2} n_{Ar} RT = \frac{3}{2} (4) RT = 6 RT\) \(U_{total} = U_{O_2} + U_{Ar} = 5 RT + 6 RT = 11 RT\)
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
- Charge passing through a conductor of cross-section \(0.3 \mathrm{~m}^2\) is given by \(\mathrm{q}=\left(3 \mathrm{t}^2+5 \mathrm{t}+2\right) \mathrm{C}\) where ' \(\mathrm{t}\) ' is in seconds. The drift velocity at \(t=2 \mathrm{~s}\) is
(Concentration of electrons in the conductor \(=2 \times 10^{25} \mathrm{~m}^{-3}\) )AP EAMCET 2023 Medium - The maximum amplitude of an amplitude modulated wave is \(16 \mathrm{~V}\), while the minimum amplitude is \(4 \mathrm{~V}\). The modulation index isAP EAMCET 2015 Easy
- One plate of a parallel plate capacitor is connected to a spring as shown in the figure. The area of each plate of the capacitor is \(A\) and the distance between the plates is \(d\), when the battery is not connected and the spring is unstretched. After connecting the battery, in the steady state the distance between the plates is \(0.75 d\), then the force constant of the spring is
AP EAMCET 2018 Hard - The bob of a simple pendulum of length 200 cm is released from horizontal position. If \(10 \%\) of its initial energy is lost due to air resistance, then the speed of bob at the mean position is
(Acceleration due to gravity \(=10 \mathrm{~m} \mathrm{~s}^{-2}\) )AP EAMCET 2025 Medium - A Carnot engine of efficiency takes heat from a source maintained at a temperature of . It is desired to have an engine of efficiency . Then, the source temperature for the same sink temperature must beAP EAMCET 2019 Medium
- The energy of a photon is equal to the kinetic energy of a proton. If \(\lambda_1\) is the de-Broglie wavelength of a proton, \(\lambda_2\) the wavelength associated with the proton and if the energy of the photon is \(E\), then \(\left(\lambda_1 / \lambda_2\right)\) is proportional toAP EAMCET 2014 Hard
More PYQs from AP EAMCET
- Find the value of k, if the line joining the points (2, k) and (3, 7) is parallel to the line joining points (− 2,1) and (3, 0).AP EAMCET 2021 Easy
- If and are the focii of an ellipse, is one end of the minor axis and , then the eccentricity of that ellipse isAP EAMCET 2018 Easy
- A real value of will satisfy the equation , ifAP EAMCET 2021 Medium
- Which among the following compound shows the highest lattice energy?AP EAMCET 2021 Easy
- If the position vectors of \(A, B\) and \(C\) are respectively \(2 \hat{\mathbf{i}}-\hat{\mathbf{j}}+\hat{\mathbf{k}}, \hat{\mathbf{i}}-3 \hat{\mathbf{j}}-5 \hat{\mathbf{k}}\) and \(3 \hat{\mathbf{i}}-4 \hat{\mathbf{j}}-4 \hat{\mathbf{k}}\), then \(\cos ^2 A\) is equal toAP EAMCET 2008 Medium
- The molecular formula of potash alum isAP EAMCET 2004 Easy