Question

7.
An ideal gas is expanding such that
PT2=constant. The coefficient of volume
expansion of the gas is :
(A)​

Answer 1

Answer:

answer is  3 / T.

Explanation:

Given the gas is an ideal gas. Hence P V = n R T     ---- (1)

Given also that the gas follows a process such that the equation

   P T² = Constant = C (say)       ---- (2)

Hence,   C/T² * V = n R T

      =>   V = (n R /C) T³           ---- (3)

Differentiating wrt T we get:    dV = 3 (nR/C) T²  dT   ---- (4)

Thermal Coefficient of volume expansion of the given gas during the given process is defined as :

       (dV/dT)/ V = (dV/V) * 1/dT     ---- (5)

        which comes to 3/T using the equations above.

ans: 3/T

Answer 2

Answer:

answer is 3/T

Explanation:

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