AE & JE ME Quiz: Thermodynamics Boster Quiz-2

The internal energy of a gas obeying van der Waals, equation (p + a/V²)(V - b) = RT depends on its

Consider the following properties:

(A) Entropy

(B) Viscosity

(C) Temperature

(D) Specific heat at constant volume

Which of the above properties of a system is/are extensive?

If a heat engine produces work without the consumption of energy, then what kind of machine is this?

A gas is compressed frictionless from an initial state of 0.4 m³ and 0.1 MPa to a final state of 0.2 m³ and 0.1 MPa. There is a transfer of 35 kJ of heat from the gas. What is the change in internal energy (in kJ)?

A carnot engine rejects 30% of absorbed heat at a sink at 30°C. The temperature of the heat source is

On T-S diagram, constant pressure line slope is expressed as:

If the COP of a heat pump is 5, find the ratio of the COP of the heat pump to that of the refrigerator (the heat pump operated as refrigerator)

Which of the following statement related to entropy is TRUE?

The value of  is equal to (where h_fg is latent heat of vaporization, T_sat is saturation temperature, v_g is dry saturated specific volume of vapour and v_f is the specific volume of saturated liquid)

Change in entropy of an irreversible adiabatic process is: