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.Management Sciences
A. enables to determine change in internal energy of the system
B. does not help to predict whether the system will or not undergo a change
C. does not enable to determine change in entropy
D. provides relationship between heat, work and internal energy
E. all of the above
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- A. at sea level B. at the center of the earth C. when molecular momentum of the system becomes zero D. under vacuum conditions E. at a temperature of – 273 °K...
- A gas is compressed in a cylinder by a movable piston to a volume one-half its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be___________________?
- A. 300 Nm B. 300,000 Nm C. 30 Nm D. 3000 Nm E. 30,000 Nm...
- The ideal efficiency of a Brayton cycle without regeneration with increase ni pressure ratio will_________________?
- A. increase B. decrease C. remain unchanged D. increase/decrease depending on application E. unpredictable...
- For a thermodynamic process to be reversible, the temperature difference between hot body and working substance should be___________________?
- A. zero B. minimum D. maximum D. infinity E. there is no such criterion...
- The pressure’of a gas in terms of its mean kinetic energy per unit volume E is equal to________________?
- A. E/3 B. E/2 C. 3E/4 D. 2E/3 E. 5E/4...
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