Advertisements
Advertisements
рдкреНрд░рд╢реНрди
An ideal gas of volume 2 L is adiabatically compressed to (1/10)th of its initial volume. Its initial pressure is 1.01 x 105 Pa, calculate the final pressure. (Given ЁЭЫ╛ = 1.4)
Advertisements
рдЙрддреНрддрд░
Given:
Vi = 2 L, Vf = `("V"_"i")/10 ⇒ ("V"_"i")/("V"_"f") = 10, "P"_"i" = 1.01 xx 10^5` Pa, γ = 1.4
To find: Final pressure (pf)
Formula: For adiabatic process: `"p"_"f" "V"_"f"^γ = "p"_"i""V"_"i"^γ`
Calculation:
From formula,
pf = pi × `("V"_"i"/"V"_"f")^γ`
= 1.01 × 105 × (10)1.4
= antilog {log (1.01) + 1.4 × log (10)} × 105
= antilog {0.0043 + (1.4 × 1)} × 105
= antilog {1.4043} × 105
= 2.537 × 106 = 25.37 × 105 Pa
The final pressure (pf) is 25.37 × 105 Pa
рд╕рдВрдмрдВрдзрд┐рдд рдкреНрд░рд╢реНтАНрди
A thermodynamic system is taken from an original state to an intermediate state by the linear process shown in Figure
Its volume is then reduced to the original value from E to F by an isobaric process. Calculate the total work done by the gas from D to E to F
Give an example of some familiar process in which heat is added to an object, without changing its temperature.
An ideal gas is taken through an isothermal process. If it does 2000 J of work on its environment, how much heat is added to it?
State the assumptions made for thermodynamic processes.
In an isochoric process, we have ____________.
Apply first law for an isothermal process.
Apply first law for an isobaric process.
Draw the PV diagram for the isothermal process.
Draw the PV diagram for the isobaric process.
Explain in detail an adiabatic process.
Explain in detail the isochoric process.
What are the limitations of the first law of thermodynamics?
In an adiabatic expansion of the air, the volume is increased by 4%, what is the percentage change in pressure? (For air γ = 1.4)
A monoatomic gas of pressure p having volume V expands isothermally to a volume 2V and then adiabatically to a volume 16V. The final pressure of the gas is ____________.
`("ratio of specific heats" = 5/3)`
An ideal gas is made to go from a state A to stale B in the given two different ways (see figure) (i) an isobaric and then an isochoric process and (ii) an isochoric and then an isobaric process. The work done by gas in the two processes are W1 and W2 respectively. Then,
In which of the following processes, beat is neither absorbed nor released by a system?
For an isothermal expansion of a perfect gas, the value of `(Delta "P")/"P"` is equal to ____________.
An ideal gas is compressed to half its initial volume by means of several processes. Which of the process results in the maximum work done on the gas?
Ideal gas for which 'ϒ' = 1.5 is suddenly compressed to `1/4`th of its initial volume. The ratio of 4 the final pressure to the initial pressure is ______.
`(ϒ = "C"_"p"/"C"_"v")`
Which of the following processes is reversible?
Give any two types of a thermodynamic process.
In the figure shown here, the work done in the process ACBA is ______.
In a certain thermodynamical process, the pressure of a gas depends on its volume as kV3. The work done when the temperature changes from 100°C to 300°C will be ______ nR, where n denotes number of moles of a gas.
Explain the thermodynamic process.
When an inflated ballon is suddenly burst, why is the emerging air slightly cooled?
An ideal gas is taken through a cyclic process ABCDA as shown in figure. The net work done by the gas during the cycle is ______.
In a cyclic process, if ΔU = internal energy, W = work done, Q = Heat supplied then ______.
