Q19) When a gas expands from 4 litre to x litre at constant pressure of 2.5 atmosphere, the work done is 750 J. The value of x is _______: a. 6 litre b. 3 litre c. 7 litre d. 2.5 litre
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- MY NOTES ASK YOUR TEACHER A gas is taken through the cyclical process shown in the figure below. If each unit on the horizontal axis equals 3.75 m³ and each unit on the vertical axis equals 3.00 x 10° Pa determine the net work done by the gas. PAIn adiabatic system, which of the following is not crossing the border of the system? Select one: O a. O b. work O c. energy O d. heat materialThe drawing shows the expansion of three ideal gases. Rank the gases according to the work they do, largest to smallest. A, B, C. OC, A, B . A and B (a tie), C OB, C, A B and C (a tie), A Pressure B Volume C
- A gas is taken through the cyclical process shown in the figure below. If each unit on the horizontal axis equals 1.50 m3 and each unit on the vertical axis equals 4.50 x 105 Pa determine the net work done by the gas.1. During the isobaric expansion from A to B represented below, -110 J of heat is removed from the gas. p (N/m²) 1.0 x 104. A B 0.15 0.30 V (m³) (a) Calculate the work done by the gas during expansion from A to B. WAB = ✓ J (b) What is the change in its internal energy? ΔΕint - VJ What Law of Thermodynamics did you use in part (b)? A#3. You are tasked with both increasing the volume and decreasing the pressure of an ideal gas via a two step process. Would the system do more work by A)doing an isobaric expan- sion followed by an isochoric step or B) doing the isochoric step followed by the isobaric expansion? Use a sketch to illustrate and explain your answer.
- During the adiabatic expansion, the temperature of 0.1 mol of oxygen drops from 30C to 10C. a) How much work does the gas do? b) How much heat is added?In a quasi-static isobaric expansion, 475 J of work are done by the gas. If the gas pressure is 0.9 atm, what is the fractional increase in the volume of the gas, assuming it was originally at 18 L? -3 Use 1 atm 10 Pa & 1 L = 10³ m AV V 31. When the pins fall away, the gas is compressed by a constant external pressure to 5 atm. Calculate AS and find the maximum work that could have been extracted from the same change in state had the process been carried out reversibly. The system is in contact with the surroundings at 250K. TE250k O.5 moler ielealget at latm -Perti Satm