Thermo Quiz 5

Question 1

What is the driving force for heat transfer?

Answer 1

Temperature Difference

Question 2

A candle is burning in a well-insulated room. Taking the room (the air plus the candle) as the system, the following statement is true:

Answer 2

There is no heat transfer

Question 3

What is the formula for heat transfer per unit mass?

Answer 3

q=Q/m

Question 4

For an adiabatic system, what is equal to zero?

Answer 4

Q

Question 5

A well-insulated electric oven is being heated through its heating element. If the system is taken as only the air in the oven without the heating element, how do we consider the energy interaction?

Answer 5

As Heat

Question 6

Energy transfer associated with a force acting through a distance is called:

Answer 6

Work

Question 7

What are the 3 work interactions?

Answer 7

Rising Piston, Rotating shaft, and Electric wire crossing the system boundary

Question 8

The boundary work is __ for expansion

Answer 8

Positive

Question 9

The boundary work is __ for compression

Answer 9

Negative

Question 10

The boundary work for an isochoric process is:

Answer 10

Zero

Question 11

What is the eqn for shaft power?

Answer 11

Ẇsh = ωT

Question 12

What is electric work defined as?

Answer 12

VI*ΔT

Question 13

What is electric power defined as?

Answer 13

VI

Question 14

What energy can be stored within a system?

Answer 14

Internal Energy

Question 15

A system cannot possess:

Answer 15

Heat(Q) or Work(W)

Question 16

Total energy is the sum of:

Answer 16

U, KE, PE

Question 17

What are the examples of macroscopic forms of energy?

Answer 17

Kinetic and Potential Energies

Question 18

What is energy is considered a microscopic form of energy?

Answer 18

Internal Energy of the System

Question 19

Thermal Energy is the sum of:

Answer 19

Sensible and Latent Energy