AP EAMCET202422 May 2024Evening ShiftPhysicsThermodynamicsActual
When 80 J of heat is absorbed by a monotonic gas, its volume increases by 16 10⁻⁵ ~m ^3 . The pressure of the gas is
Options
- A2 10^5 Nm ⁻²
- B4 10^5 Nm ⁻²
- C6 10^5 Nm ⁻²
- D5 10^5 Nm ⁻²
Correct answer
A. 2 10^5 Nm ⁻²
Step-by-step solution
For monoatomic gas, f =3 u = nfR ~T 2 = 3 2 n R ~T By first law of thermodynamics, aligned & Q = U + W =- nR ~T + nR ~T = 5 2 nR ~T & 80= 5 2 nR ~T = 5 2 p v = 5 2 16 10⁻⁵ p & P =2 10^5 Nm ⁻² aligned