AE & JE ME Quiz: Thermodynamics Boster Quiz-1

Energy of a system is defined as _________.

Which of the following is NOT a property of a pure substance?

If a mixture of vapour and water is throttled from state 1 to state 2, determine the quality of steam at state 2 if the following properties are given:-

State-1

P₁ = 5 MPa

h_f = 1154.21 kJ/kg, h_g = 2794.3 kJ/kg

x₁ = 0.72

State-2

P₂ = 2 MPa

h_f = 908.77 kJ/kg, h_g = 2799.5 kJ/kg

According to Kelvin-Planck’s statement of the second law of thermodynamics, which of the following statements is correct?

Absolute pressure at which triple point of water exist is_____.

Consider following thermodynamic processes.

1) Throttling

2) Free expansion

Which of the following process is irreversible process,

A air at 207°C enters an adiabatic nozzle with negligible velocity and leaves the nozzle at 27°C. Assuming no heat loss and nozzle being horizontal find exit velocity of hozzle (Cp = 1kJ/kgk)

A reversible heat engine works between two reservoirs temperature of 627°C and 127°C . If Heat supplied to the engine is 1500 kJ/min. Find heat rejected to 127°C temperature reservoir.

Vander waals equation of the real gases is given by

Here ‘a’ is a factor to account ________.

While working between temperatures 150 K and 300 K, the entropy change experienced by the Carnet engine during heat addition is 1 kJ/K, the work produced (kJ) by the engine is______________ .