Enthalpy of a gas depends upon its___________________?
Enthalpy of a gas depends upon its___________________?
A. Temperature
B. Mass
C. Volume
D. Pressure
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Compound having large heat of formation is_____________________?
Compound having large heat of formation is_____________________?A. More stable
B. Less stable
C. Not at all stable (like nascent O2)
D. Either more or less stable; depends on the compoundSublimation temperature of dry ice (solid CO2) is ____________ °C?
Sublimation temperature of dry ice (solid CO2) is ____________ °C?A. -273
B. 0
C. -78
D. 5COP of a refrigerator drawing 1 kW of power per ton of refrigeration is about____________________?
COP of a refrigerator drawing 1 kW of power per ton of refrigeration is about____________________?A. 0.5
B. 3.5
C. 4.5
D. 8.5Which is not a refrigerant ?
Which is not a refrigerant ?A. SO2
B. NH3
C. CCl2F2
D. C2H4Cl2Entropy change of the reaction, H2O (liquid) → H2O (gas), is termed as the enthalpy of___________________?
Entropy change of the reaction, H2O (liquid) → H2O (gas), is termed as the enthalpy of___________________?A. Solution
B. Vaporisation
C. Formation
D. SublimationThrottling process is a/an _____________ process?
Throttling process is a/an _____________ process?A. Reversible and isothermal
B. Irreversible and constant enthalpy
C. Reversible and constant entropy
D. Reversible and constant enthalpy