The unit of power in S.I. units is_______________________?
The unit of power in S.I. units is_______________________?
A. newton
B. pascal
C. erg
D. watt
E. joule
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If a certain amount of dry ice is mixed with same amount of water at 80°C, the final temperature of mixture will be__________________?
If a certain amount of dry ice is mixed with same amount of water at 80°C, the final temperature of mixture will be__________________?A. 80°C
B. 0°C
C. 40°C
D. 20°C
E. 60°CTemperature of a gas is produced due to________________?
Temperature of a gas is produced due to________________?A. its heating value
B. kinetic energy of molecules
C. repulsion of molecules
D. attraction of molecules
E. surface tension of moleculesExtensive property of a system is one whose value______________________?
Extensive property of a system is one whose value______________________?A. depends on the mass of the system like volume
B. does not depend on the mass of the system, like temperature, pressure, etc.
C. is not dependent on the path followed but on the state
D. is dependent on the path followed and not on the state
E. is always constantAn open system is one in which____________________?
An open system is one in which____________________?A. mass does not cross boundaries of the system, though energy may do so
B. neither mass nor energy crosses the boundaries of the system
C. both energy and mass cross the boundaries of the system
D. mass crosses the boundary but not the energy
E. thermodynamic reactions do not occurThe energy of molecular motion appears as________________?
The energy of molecular motion appears as________________?A. heat
B. potential energy
C. surface tension
D. friction
E. increase in pressureBrayton cycle consists’ of following four processes____________________?
Brayton cycle consists’ of following four processes____________________?A. two isothermals and two isentropics
B. two isentropics and two constant volumes
C. two isentropics, one constant volume and one constant pressure
D. two isentropics and two constant pres-sures
E. none of the above