Thermodynamics Pre-Assessment

Front

What is your experience with thermodynamics?

Back

None, I've heard of it and get the idea, High school chemistry/physics, Previous college course

Front

I understand the value of understanding thermodynamics and how I can use it in my career and life

Back

I understand the value and plan to use thermodynamics extensively in my life

Front

Conservation of Energy is another name for

Back

First Law of Thermodynamics

Front

Define Exothermic

Back

Energy is released; ΔH is negative; Going from Gas to Liquid, Liquid to Solid

Front

How much energy is needed to raise the temperature of a 20.0g piece of copper from 15.0 degrees Celsius to 25.0 degrees Celsius? (The specific heat of copper is 0.385 J/g C)

Back

20 X .385 X (25-15)= 77 J

Front

Is the reaction exothermic or endothermic? H2 + S + O2 -> H2SO4 ΔH = -811.13kJ

Back

ΔH is negative so it is exothermic

Front

Specific Heat

Back

the amount of energy it takes to raise one gram of a substance by one degree Celsius

Front

The average kinetic energy of the atoms or molecules in a substance is directly related to

Back

temperature

Front

To freeze water …

Back

energy must be removed from the water

Front

Which statement is true about the ENTROPY? Options: Entropy refers to DISORDER, the unusable energy that escapes a system., Entropy refers to the balance of temperature among two or more systems., Entropy refers to the average kinetic energy of the molecules., Entropy refers to the inability to destroy or create energy.

Back

Entropy refers to DISORDER, the unusable energy that escapes a system.