How to use FlashCard Decks – When you have a few minutes to review, open up on mobile or desktop and flip through to quickly memorize these life-relevant units and conversions. Simply tap or click the card to reveal the other side. If you feel like you really know it, click or tap, “Got it!” and you won’t see it again during this session. If you click “Need more practice,” it will appear again later for you to review. You can shuffle the deck at any time. When you reach the end, you can always reply the deck. It’s best to commit just a few minutes a day rather than trying to cram 30 minutes before a quiz or test. Good luck.

(Mobile Hint: There is a small FULLSCREEN button at the top left of each deck. If you press it, and/or rotate your screen, it will fill up your phone’s display.)

Deck 1 – Units and Dimensions

[qdeck random=”true” hide_forward_back=”true” hide_flip=”true” style=”border-width: 4px !important; border-color: #0033cc !important; border-style: solid !important; “]

[q topic=”Distance”] 100 cm =

[a] 1 meter 

[q topic=”Distance”] 1000 mm =

[a] 1 meter 

[q topic=”Distance”] 1 foot =

[a] 12 inches (in) 

[q topic=”Distance”] 1 inch

[a] 2.54 cm 

[q topic=”Distance”] 1 mile =

[a] 5280 feet (ft) 

[q topic=”Distance”] 1000 meters (m) =

[a] 1 kilometer (km) 

[q topic=”Volume”] 1 Liter =

[a] 0.264 US Gallons (gal) 

[q topic=”Volume”] 1000 mL =

[a] 1 Liter (L) 

[q topic=”Volume”] 1 ml =

[a] 1 cm3 (cc or cubic centimeter)

[q topic=”Energy”] 1 Joule (J) =

[a] 1 N∙m

[q topic=”Energy”] 1 cal =

[a] 4.184 Joules (J)
Amount of Energy to Raise 1 g of Water, 1°C

[q topic=”Energy”] 1 Cal (with Capital C) =

[a] 1 kilocalorie (kcal) 

[q topic=”Energy”] 1 BTU =

[a] 1.0551 kiloJoules (kJ)
Amount of Energy to Raise 1 lbm of Water, 1°F 

[q topic=”Energy”] 1 Watt (W) =

[a] 1 Joule/second (J/s) 

[q topic=”Energy”] 1 Newton (N) =

[a] 1 kg∙m/s2

[q topic=”Pressure”] 760 mmHg =

[a] 1 atmosphere (atm) 

[q topic=”Pressure”] 101 325 Pascals (Pa) =

[a] 1 atmosphere (atm) 

[q topic=”Pressure”] 14.696 psi =

[a] 1 atmosphere (atm) 

[q topic=”Pressure”] 100 000 Pascals (Pa) =

[a] 1 bar 

[q topic=”Mass”] 1 lb =

[a] 453.59 grams (g) 

[q topic=”Mass”] 1000 grams (g) =

[a] 1 kg 

[q topic=”Mass”] 1 metric ton (tonne) =

[a] 1000 kg 

[q topic=”Mass”] 1 US Ton (ton) =

[a] 2000 lbm 

[q topic=”Energy”] The Answer to the Ultimate Question of Life, the Universe, and Everything =

[a] 42 

[x] The First Order Thanks you for your commitment to Thermodynamics Excellence! 

[restart] [/qdeck]

Deck 2 – Equations and Laws


[q unit=”Equations”] COP of any Refrigerator (beta)



[q unit=”Equations”] COP of Reversible Refrigerator (beta max)



[q unit=”Equations”] COP of any Heat Pump (gamma)



[q unit=”Equations”] COP of a reversible Heat Pump (gamma max)



[q unit=”Equations”] Thermal Efficiency of Heat Engine



[q unit=”Equations”] Isentropic Efficiency of a Compressor



[q unit=”Equations”] Isentropic Efficiency of a Turbine



[q unit=”Ideal_Gas”] Basic Ideal Gas Law


[q unit=”Ideal_Gas”] Gas Constant is … 


[q unit=”Ideal_Gas”] Ideal Gas Law with Specific Volume


[q unit=”Ideal_Gas”] R =


[q unit=”Ideal_Gas”] Ideal Gas relation for Internal Energy


[q unit=”Ideal_Gas”] Ideal Gas relation for Enthalpy


[q unit=”Ideal_Gas”] Ideal Gas relation for Entropy


[q unit=”Ideal_Gas”] Ideal Gas R relation to Cp and Cv


[q unit=”Ideal_Gas”] Ideal gas k relationship



[q unit=”Ideal_Gas”] Ideal Gas relation when system is Isentropic and Cp is Constant



[q unit=”Equations”] Lower case Sigma (σ) is…

[a] Rate of Entropy Creation

σ > 0 – Possible and Irreversible

σ < 0 – Impossible

σ = 0 – Reversible (ideal)

[q unit=”Equations”] General Entropy Balance


[q unit=”Equations”] Generalized Mass Balance


[q unit=”Equations”] General Energy Balance


[q unit=”Terms”] Adaibatic

[a] Q = 0 

[q unit=”Terms”] Reversible

[a] Sigma = 0 

[q unit=”Terms”] Adaibatic and Reversible

[a] Isentropic 

[q unit=”Terms”] Steady Flow

[a] Open System
sum of masses in = sum of masses out
no change in control volume over time 

[q unit=”Terms”] Heat exchanger assumption

[a] Low Pressure Drop 

[q unit=”Terms”] Transient Analysis Key words

[a] Tank is Vented
Tank is Leaking
Pressure regulating/relief valve
Tank is filled 

[x] The First Order Thanks you for your commitment to Thermodynamics Excellence! 




Deck 3 – Process Labels and Concepts

Coming Soon