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.Management Sciences
Category: Thermodynamics for Chemical
Consider the reaction, C + O2 ⇌ CO2; ΔH = – 94 kcal. What will be the value of ΔH for the reaction CO2 → C + O2 ?
A. -94 kcal
B. +94 kcal
C. > 94 kcal
D. < -94 kcal
For an exothermic reaction ____________________?
A. Only enthalpy change (ΔH) is negative
B. Only internal energy change (ΔE) is negative
C. Both ΔH and ΔE are negative
D. Enthalpy change is zero
Kopp’s rule is used to calculate the heat capacity of___________________?
A. Solids
B. Liquids
C. Gases
D. All (A), B. & (C)
A gas shows deviation from ideal behaviour at______________?
A. Low pressure and high temperature
B. Low pressure and low temperature
C. Low temperature and high pressure
D. High temperature and high pressure
Heat pump_______________________?
A. Accomplishes only space heating in winter
B. Accomplishes only space cooling in summer
C. Accomplishes both A. and B
D. Works on Carnot cycle
The chemical potential for a pure substance is ____________ its partial molal free energy?
A. More than
B. Less than
C. Equal to
D. Not related to
Co-efficient of Performance (COP) of a refrigerator is the ratio of the ______________________?
A. Work required to refrigeration obtained
B. Refrigeration obtained to the work required
C. Lower to higher temperature
D. Higher to lower temperature
Filling of gas from a high pressure cylinder into small bottles is an example of a/an ______________ process?
A. Equilibrium
B. Adiabatic
C. Steady
D. Unsteady
_______________ functions are exemplified by heat and work ?
A. Path
B. Point
C. State
D. None of these
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