In fact, Joule was able to show that the mechanical work has the same effect as giving heat. In the process ABC for an ideal mono-atomic gas, the temperature at states A and C are equal. resistor rate of energy dissipation / W internal resistance € € R € (3) (ii)€€€€€Hence show that energy is conserved in the circuit. Figure 2 shows the streaklines which indicate how gas flows through a real Stirling engine. In an ideal monatomic gas, each molecule is a single atom. Figure shows the variation of the internal energy U with density ρ of one mole of an ideal monatomic gas for thermodynamic cycle ABCA. When the earth is farthest from the sun speed is minimum, hence KE is minimum but never zero and negative. (3) (b) (i) Calculate the number of gas molecules in the cylinder. If the … Figure shows the variation of potential energy of a particle as a function of x, the x-coordinate of the region. For all other values of x, U is zero, i.e., `xlarr10` and `xgt15`, `U=0`. The temperature of the gas remains constant. _____ _____ (2) (Total 12 marks) Roding Valley High School Page 5 of 8. shows the variation of internal energy `(U)` with the pressure `(P)` of 2.0 mole gas in cycle process `abcda`. (b) If the pressure at point A is five times that of point C, what is the work done by the system in going from C to D? Figure, shows the variation of potential energy `(U)` of 2 mol of Argon gas with its density in a cyclic process `ABCA`. Internal energy increases with rising temperature and with changes of stateor phase from solid to liquid and liquid to gas. The vertical colored lines delineate the volumes of the engine. Figure shows variation of internal energy (U) with density(, (A) Work done by the gas in process AB is – U, (B) Work done by the gas in process BC is + 2/3 U. It has been assumed that potential energy depends only on x. Cloudflare Ray ID: 642095031c76dc85 The potential internal energy is the potential energy associated with each of the interactions of these elements. The temperatures of gas at `c` and `d` are 300 and `500 K`, respectively. The work done along path ABC is + 500J. Justify your answer. Discuss graphically, the variation of kinetic energy and potential energy and the total energy ← Prev Question Next Question → 0 votes . Performance & security by Cloudflare, Please complete the security check to access. The loudspeaker is driven by a sine-wave generator. Figure shows variation of internal energy (U) with density(ρ) for a mono atomic ideal gas in a cyclic process. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. The internal kinetic energyis caused by the movement of the particles of the system (translations, rotations and vibrations). (ii) For which material will the emitted electrons have greater kinetic energy for the incident radiations of the same frequency ? This video shows how the internal energy of an object changes upon heating or cooling it. Figure 5. is 14.5 . Process BA is a part of a rectangular hyperbola. It is suggested that capillary action moves water from the roots of a tree to its leaves. Figure 5 . mm. Figure (26-E10) shows the variation in the internal energy U with the volume V of 2.0mole of an ideal gas in a cyclic process abcda. Figure 2 (a) By plotting two or three additional points draw a graph, on the axes given in Figure 2, to show the relationship between pressure and volume as the piston is slowly pulled out. The internal energy is the sum of two different types of energy: the internal kinetic energyand the internal potential energy. You may need to download version 2.0 now from the Chrome Web Store. Figure shows the variation of potential energy of a particle as a function of x, the x-coordinate of. 0 votes. Please enable Cookies and reload the page. Nonetheless, in mechanics, is defined as the total energy of the system minus the orbital energy and the potential energy due to external forces or, in other words, the sum of the kinetic energy relative to the center of mass and the potential energy due to internal … Figure shows the variation of internal energy \"U\" with the density \" ρ \" of one mole of ideal diatomic gas. Figure 1 shows data for the variation of the power output of a photovoltaic cell with load resistance. Calculate the heat absorbed by the gas during the process. (i) Why is the slope same for both lines? U × ρ constant. The data were obtained by placing the cell in sunlight. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. It is also stated the path `AB` is a rectangular hyperbola and the internal energy of the gas at state `C` is `3000r`. Process BA is a part of a rectangular hyperbola. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students. Fig. (a) 400 R ln 2 (b) 200 R ln 2 (c) 100 R ln 2 (d) 300 R ln 2 The internal potential energ… In earlier days the heat was measured in calorie. Here process AB is a part of rectangular hyperbola. m. Calculate the internal … Another way to prevent getting this page in the future is to use Privacy Pass. asked Feb 28, 2018 in Class XI Physics by vijay Premium (539 points) work. answered Feb 28, 2018 by rahul152 (-2,838 points) (d) As the earth moves once around the sun in its elliptical orbit, when the earth is closest to the sun, speed of the earth is maximum, hence KE is maximum. The temperature of gas at c and d are 300 K and 500 K. Calculate the heat absorbed by the gas during the process. The internal energy of a thermodynamic system is the energy contained within it. Fig. The internal energy of the system is not affected by moving it from the basement to the roof of a 100-story building or by placing it on a moving train. The loudspeaker is close to, but not touching, the glass. Figure shows variation of stopping potential (V 0) with the frequency (v) for two photosensitive materials M 1 and M 2. Label and explain the main features of the variation. This accounting process is easiest to carry out for a perfect gas sample because the particles do not interact with each other. 281 views. Figure (a) How much thermal energy has to be added to the system as it goes from A through B to C? He found that to raise 1 g of an object by 1°C , 4.186 J of energy is required. shows the variation of internal energy `(U)` with the pressure `(P)` of 2.0 mole gas in cycle process `abcda`. The temperatures of the gas at b and c are 500 K and 300 K respectively. Figure shows the variation of internal energy (U) with the pressure (P) of 2.0 mole gas in cyclic process abcda. Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries.

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