The thermal efficiency of an Otto cycle is 0.66%. What is the ratio of the minimum volume over the maximum volume of the gas in this system if the gas used is monoatomic.
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The thermal efficiency of an Otto cycle is 0.66%. What is the ratio of the minimum volume over the maximum volume of the gas in this system if the gas used is monoatomic.
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- The first Law of thermodynamics is applied to an ideal gas that is then taken through an isobaric process. Is work done by the gas?A 1.00-mol sample of a monatomic ideal gas is taken through the cycle shown in Figure. At point A, the pressure, volume, and temperature are Pi, Vi, and Ti, respectively. In terms of R and Ti, find (a) the total energy entering the system by heat per cycle, (b) the total energy leaving the system by heat per cycle, and (c) the efficiency of an engine operating in this cycle. (d) Explain how the efficiency compares with that of an engine operating in a Carnot cycle between the same temperature extremes.16
- Calculate the efficiency of the reversible cycle in figure for an ideal monoatomic gas where the transformation from 1->2 is described by the equation P2 V = A= constant (Assume V2 = 4 V1). P 3 1 V1 2 V2 V Hint: You might need to use the following integral: = √ + GA little bit of a problem can be found for Q1-2 = AU + W where the integral above may result useful to know.One mole of an ideal gas is used as the working substance of an engine operating in the cycle shown in the figure below. BC and DA processes are reversible adiabatic.a) Is the gas monoatomic, diatomic or triatomic?b) What is the efficiency and engine?Suppose a gas absorbs 498 J of energy while doing 147 J of work on its environment. Calculate the change in the internal energy of the gas.
- Suppose a heat engine design makes a square on a PV diagram, using a monatomic gas. The high pressure is 3P and low pressure is P. The high volume is 3V and low volume is V. What is the efficiency of the heat engine?The graph shown is for a dilute gas that follows the clockwise path of quasi-static steps: isobaric expansion, isochoric reduction of pressure, isobaric compression, and isochoric increase in pressure. The vertical axis is shown in multiples of the pressure pp, where p=2.5atm, and the horizontal axis is shown in multiples of V, where V=4L. Part (a) What is the work done for the segment from state A to state B? Part (b) What is the work done for the segment from state B to state C? Part (c) What is the work done for the segment from state C to state D? Part (d) What is the total work done in making a single clockwise cycle, A to B to C to D?Neon gas goes through the cycle in the above figure. Assume the gas is ideal. Find the eciency of the cycle if the number of moles of the gas is 1.0 mol