Which of the following equations is obtained on combining 1st and 2nd – McqOptions

MCQOPTIONS

1.	Which of the following equations is obtained on combining 1st and 2nd law of thermodynamics, for a system of constant mass?
A.	dE = Tds - PdV
B.	dQ = CvdT + PdV
C.	dQ = CpdT + Vdp
D.	Tds = dE - PdV
Answer» B. dQ = CvdT + PdV

Discussion

No Comment Found

Related MCQs

The accentric factor of a materical, 'ω', is defined as ω = -log() = 0.7, where, = reduced vapor pressure, = reduced temperature. The value of accentric factor is always
The chemical potential of a component (μ) of a phase is the amount by which its capacity for doing all work, barring work of expansion is increased per unit amount of sustance added for an infinitesimal addition at constant temperature and pressure. It is given by
The expression, , gives the free energy change
Pick out the wrong statement pertaining to the decomposition of PCl represented by, PCl PCl + Cl.Degree of dissociation of PCl will
As the temperature is lowered towards the absolute zero, the value of the quantity approaches
Joule-Thomson co-efficient which is defined as, , changes sign at a temperature known as inversion temperature. The value of Joule-Thomson co-efficient at inversion temperature is
The expression, , is for the____of an ideal gas.
Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg . K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is
The Joule-Thomson co-efficient is defined as (∂/∂). Its value at the inversion point is
In the reaction, represented by, 2SO + O 2SO; ΔH = - 42 kcal; the forward reaction will be favoured by