The thermodynamic work done by the system on the surrounding is considered as ____.

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

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

Practically heat and work are completely interchangeable forms of energy

A. True

B. False

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