TS EAMCET · Physics · Thermodynamics
The total internal energy of 4 moles of a diatomic gas at a temperature of \(27^{\circ} \mathrm{C}\) is (Universal gas constant \(=8.31 \mathrm{~J}\) \(\mathrm{mol}^{-1} \mathrm{~K}^{-1}\) )
- A 13.47 kJ
- B 4.98 kJ
- C 24.93 kJ
- D 14.96 kJ
Answer & Solution
Correct Answer
(C) 24.93 kJ
Step-by-step Solution
Detailed explanation
Total internal energy \(u=n \frac{f}{2} \mathbf{R T}\) for diatomic gas \(\mathrm{f}=5, \mathrm{n}=4\) moles and \(\mathrm{T}=27^{\circ} \mathrm{C}=27+273=300 \mathrm{~K}\) given Therefore \(u=4 \times \frac{5}{2} \times 8.31 \times 300=24.93 \times 10^3 \mathrm{~J}\) or,…
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
- When subjected to a voltage of \(10 \mathrm{~V}\), the current through a resistor at a temperature of \(40^{\circ} \mathrm{C}\) is \(0.1 \mathrm{~A}\). The temperature coefficient of resistance of the material of the resistor is \(2 \times 10^{-4}{ }^{\circ} \mathrm{C}^{-1}\). The temperature of the resistor in \({ }^{\circ} \mathrm{C}\) when the current drops to \(0.098 \mathrm{~A}\) isTS EAMCET 2019 Medium
- A convex lens forms a real image of a point object placed on its principal axis. If the upper half of the lens is painted black, thenTS EAMCET 2023 Easy
- The change in current through a junction diode is \(12 \mathrm{~mA}\) when the forward bias voltage is changed by \(0.6 \mathrm{~V}\). The dynamic resistance isTS EAMCET 2016 Easy
- Two stars of masses ' \(M\) ' and ' \(2 M\) ' that are at a distance ' \(d\) ' apart, are revolving one around another. The angular velocity of the system of two stars is (G-Universal gravitational constant)TS EAMCET 2024 Easy
- 114. Match the electromagnetic radiations given in List -I with their uses given in List - II.
TS EAMCET 2023 Easy - A message signal is used to modulated a carrier signal of frequency \(5 \mathrm{MHz}\) and peak voltage of \(40 \mathrm{~V}\). In the process, two side-bands are produced seperated by \(40 \mathrm{kHz}\). If the modulation index is 0.75 , then the peak voltage and frequency of the messages signal, respectively areTS EAMCET 2019 Easy
More PYQs from TS EAMCET
- On using red light \((\lambda=6600 Å)\) in Young's double slit experiment, 60 fringes are observed in the field of view. If violet light \((\lambda=4400 Å)\) is used, the number of fringes observed will beTS EAMCET 2020 Medium
- In a time ' \(t\) ', the amplitude of vibrations of a damped oscillator becomes half of its initial value, then the mechanical energy of the oscillator decreases byTS EAMCET 2024 Easy
- Three resistances of equal values are arranged in four different configurations as shown below. Power dissipation in the increasing order is
TS EAMCET 2012 Easy - Two unit negative charges are placed on a straight line. A positive charge \(q\) is placed exactly at the mid point between these unit charges. If the system of these three charges is in equilibrium, the value of \(q\) (in \(\mathrm{C}\) ) isTS EAMCET 2007 Medium
- The emfs of three cells connected in parallel are \(E_1=5 \mathrm{~V}, E_2=8 \mathrm{~V}\) and \(E_3=10 \mathrm{~V}\) and their internal resistances are \(R_1=1 \Omega, R_2=2 \Omega\) and \(R_3=3 \Omega\), respectively. By changing \(E_3\) to \(E_{3 N}\), the equivalent emf is doubled, then \(E_{3 N}\) in \(V\) isTS EAMCET 2018 Medium
- Two rods whose lengths are and with heat conductivity co-efficients and are placed end to end. The heat conductivity coefficient of a uniform rod of length whose conductivity is same as that of the system of these two rods isTS EAMCET 2021 Easy