Enthalpy ‘H’ is defined as___________________?
Enthalpy ‘H’ is defined as___________________?
A. H = E – PV
B. H = F – TS
C. H – E = PV
D. None of these
Thermodynamics for Chemical
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The Joule-Thomson co-efficient is defined as (∂T/∂P)H. Its value at the inversion point is__________________?
The Joule-Thomson co-efficient is defined as (∂T/∂P)H. Its value at the inversion point is__________________?A. ∞
B. 1
C. 0
D. -ve -
When a gas in a vessel expands, its internal energy decreases. The process involved is________________?
When a gas in a vessel expands, its internal energy decreases. The process involved is________________?A. Reversible
B. Irreversible
C. Isothermal
D. Adiabatic -
For a single component two phase mixture, the number of independent variable properties are_________________?
For a single component two phase mixture, the number of independent variable properties are_________________?A. Two
B. One
C. Zero
D. Three -
Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the__________________?
Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the__________________?A. Calorific value
B. Heat of reaction
C. Heat of combustion
D. Heat of formation -
What is the value of ln y (where y = activity co-efficient) for ideal gases ?
What is the value of ln y (where y = activity co-efficient) for ideal gases ?A. Zero
B. Unity
C. Infinity
D. Negative -
What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope ?
What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope ?A. 0
B. 2
C. 1
D. 3 -
In the ammonia synthesis reaction, N2 + 3H2 ⇌ 2NH3 + 22.4 kcal, the formation of NH3 will be favoured by___________________?
In the ammonia synthesis reaction, N2 + 3H2 ⇌ 2NH3 + 22.4 kcal, the formation of NH3 will be favoured by___________________?A. High temperature
B. Low pressure
C. Low temperature only
D. Both low temperature and high pressure -
Grams of butane (C4H10) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be__________________?
Grams of butane (C4H10) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be__________________?A. 580
B. 640
C. 1160
D. Data insufficient; can’t be computed -
Joule-Thomson co-efficient for a perfect gas is_____________________?
Joule-Thomson co-efficient for a perfect gas is_____________________?A. Zero
B. Positive
C. Negative
D. None of these