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Cv is a for a constant volume, and there is therefore no work done in the expansion whereas as Cp accounts for the work done by the gas during its expansion, as well as the change in its internal energy. Thusly Cp is generally bigger than Cv.
Intuitively this would be very simple to work out yourself. We used to have to work this out ourselves back in my day, not just resort to cheap answers on the interweb.
What else can I help you with?
Is there any cathodic protection for offshore cranes?
According Cp if ur Crane is not contacting with any electrolyte like water, soil, means ther is no cp for atmospheric corrosion.
What is Central tendecy?
There are three statistical measures of "central tendency" - mean, median and mode. Combined, they give a picture of how close the data values cluster around a single "average" value. Normally, when someone talks of AVERAGE they are talking about the MEAN - where you add all the values and divide by the number of data points. But that value can be greatly affected by extreme values (e.g., the Mean of the following numbers: 3, 4, 4, 5, 4, 3, 27, 4, and 4 would be skewed by that one value that is not close to most of the others). The MODE of the numbers I gave, however, is the value that occurs most frequently - 4. The MEDIAN, the point where half the values are higher and half are lower, would also be 4. So, you see, the Central Tendency would be toward the value 4 and there is a strong Central tendency in this set of values. You could have a different set of numbers (e.g., 3, 27, 118, 11, 2, 963, 48) and while you could calculate an arithmetic mean, you could see that it wouldn't be too useful since there is no real Central Tendency of the data.
What are the advantages of scotch yoke mechanism over slider crank mechanism?
Reduced friction, smoother operation, more power delivered. A big disadvantage is that the slot in the yoke wears rapidly due to sliding friction.
Applications of center of pressure?
As the intensity of pressure increases with depth so for an inclined surface CP is bellow CG. Center of gravity : a point from which the weight of a body or system may be considered to act. In uniform gravity it is the same as the center of mass.
What is the Fracture Toughness Values of Stainless Steel 304?
88 MPa.m-1/2
Why the value of cp and cv is different for different gases?
The values of cp (specific heat at constant pressure) and cv (specific heat at constant volume) are different for different gases because the way gases store and release heat energy varies depending on their molecular structure and behavior. Gases with different molecular compositions have different ways of transferring and storing energy, leading to variations in their specific heat capacities.
What Cv and Cp of air?
1.005
How do you derive the equation cp-cv equals R?
The equation Cp - Cv = R is derived from the first law of thermodynamics applied to an ideal gas process. It relates the specific heat capacities at constant pressure (Cp) and constant volume (Cv) of an ideal gas to the universal gas constant (R). This relationship is based on the assumption that the internal energy of an ideal gas depends only on its temperature.
Does the relation Cp minus Cv equal R hold true for solids and liquids Why or why not?
No, this relation is ONLY for ideal gases. The difference between Cp and Cv can be written more generally as T*(dP/dT)v*(dV/dT)p, where the lower case v and p represent the derivatives taken at constant volume and pressure, respectively. If you take these two derivatives using the ideal gas law (PV=nRT), then the result simplifies to Cp-Cv=R. However, solids and liquids do not follow the ideal gas law, and the difference between Cp and Cv is much smaller... negligible in many cases. For solids, Cp-Cv can be calculated using the isobaric expansivity, isothermal compressibility, and density of the material.
Why Cp is greater Cv?
Because Cp has two functions:- 1-To change the internal energy dU. 2-To do work dW in expanding the gas. Where as Cv has only one function of changing the internal energy of the gas..by awais
Why Cp is greater than Cv?
Because Cp has two functions:- 1-To change the internal energy dU. 2-To do work dW in expanding the gas. Where as Cv has only one function of changing the internal energy of the gas....by Hamoud Seif
Give expression for efficiency of dual cycle?
= 1 - qout/qin = 1 - cv(T4-T1)/(cv(Tx-T2)+cp(T3-Tx))
Explain how you can determine the atomicity of a gas?
To find the atomicity of an ideal gas you can use γ = Cp/Cv.
What are the differences between the specific heat capacities (cp) and molar heat capacities (cv) of a substance, and how do they relate to the number of degrees of freedom (nr) in the system?
The specific heat capacity (cp) of a substance measures the amount of heat needed to raise the temperature of a unit mass of the substance by 1 degree Celsius, while the molar heat capacity (cv) measures the heat needed to raise the temperature of one mole of the substance by 1 degree Celsius. The relationship between cp and cv is given by the equation cp cv R, where R is the gas constant. The number of degrees of freedom (nr) in a system is related to the molar heat capacity through the equation cv (nr/2)R. This means that the molar heat capacity is directly proportional to the number of degrees of freedom in the system.
What is the significance of the cp/cv ratio in thermodynamics and how does it affect the behavior of gases?
The cp/cv ratio in thermodynamics is important because it helps determine how gases behave when heated or cooled. Specifically, it affects how much a gas's temperature changes when it absorbs or releases heat. Gases with a higher cp/cv ratio tend to experience larger temperature changes for the same amount of heat added or removed, while gases with a lower ratio have smaller temperature changes. This ratio is crucial in understanding and predicting the behavior of gases in various thermodynamic processes.
Why has a gas two values of molar heat capacities?
Gasses have two specific heat capacities because the boundary conditions can affect the number by up to 60%. Therefore, a number is given to each boundary condition: isobaric (constant pressure) or isochoric (constant volume). In an ideal gas, they differ by the quantity R (the gas constant - the same one you use in the ideal gas law): Cp = Cv + R where Cp is the isobaric molar heat capacity (specific heat) and Cv is the isochoric molar heat capacity.
Why general gas equation is used in the proof of cp-cvR?
The general gas equation, PV = nRT, is used in the proof of the specific heat capacities relationship (Cp - Cv = R) because it helps relate the pressure, volume, and temperature of a gas to its moles and universal gas constant, allowing for the derivation of Cp and Cv in terms of these properties. This relationship is then utilized to show that the difference between the specific heat capacities at constant pressure and constant volume is equal to the universal gas constant.
