A Classify each following statement as true or false 1 T F T

A) Classify each following statement as true or false:
1. (T) (F) The change of internal energy during a cyclic process is always positive.
2. (T) (F) Temperature, pressure, and specific entropy are intensive properties of the system.
3. (T) (F) Coefficient of performance of refrigerator and heat pump can exceed 1.
4. (T) (F) In an internally reversible process with heat loss, entropy increases.
5. (T) (F) for a closed system process with negligible kinetic and potential energy changes, the first law equation is:
Qnet,in – Wnet,out = U
6. (T) (F) The volume flow rate of Air is the same at inlet and outlet of the diffuser for an isothermal process.
7. (T) (F) In the Carnot Heat Engine, the ratio of the two reservoir absolute temperatures (TH/TL) is equal to the ratio of heat input to heat rejected (QH/QL).
8. (T) (F) In Carnot heat engine cycle, increasing the temperature of the heat source (TH) decreases the thermal efficiency of the cycle.

Solution

1)true

2)true

3)true

4)false

5)false

6)false

7)true

8)false