When the heat transfer into a system is more than the work transfer out of the system, then
A. the internal energy of the system remains constant
B. the internal energy of the system decreases
C. the internal energy of the system increases
D. none of the above
The energy of an isolated system
A. is always decreasing
B. is always constant
C. is always increasing
D. none of the above
The term which can differentiate thermodynamics from other sciences is ____.
A. Pressure
B. Temperature
C. Mass
D. none of the above
The thermodynamic work done by the system on the surrounding is considered as ____.
A. positive
B. negative
C. neutral
D. none of the above
First law of thermodynamics provides
A. a statement that energy balance occurs when a system undergoes the change of state or the process
B. a statement about whether the change of state or the process is at all feasible or not
C. both a. and b.
D. none of the above