Universal & Characteristics Gas Constant Quiz
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Questions and Answers

What is the value of the triple point of water following the 2019 redefinition of SI base units?

273.16±0.0001 K and a vapor pressure of 611.657 pascals (6.11657 mbar; 0.00603659 atm)

At what pressure can liquid water exist according to the triple point?

Equal to or greater than the triple point pressure

What happens to solid ice in the vacuum of outer space below the triple point?

Solid ice sublimates, transitioning directly into water vapor when heated at a constant pressure

What is the minimum temperature where the liquid can exist for most substances? Is this the case for water?

<p>The gas–liquid–solid triple point. No, this is not the case for water.</p> Signup and view all the answers

What happens to water vapor just below the triple point at a constant temperature?

<p>It transforms first to solid and then to liquid with compression at a constant temperature</p> Signup and view all the answers

What is the art of measurement of temperature known as?

<p>Thermometry</p> Signup and view all the answers

What property changes with temperature and is used to determine the temperature?

<p>Thermometric property</p> Signup and view all the answers

What is the term for force per unit area exerted by fluid normal to the surface?

<p>Pressure</p> Signup and view all the answers

What is the property called that helps to determine the temperature, examples of which include pressure, volume, resistance, voltage, and wavelength?

<p>Thermometric property</p> Signup and view all the answers

What is the term for the normal pressure measured by a barometer in the atmosphere?

<p>Atmospheric pressure (Patm)</p> Signup and view all the answers

What is the pressure called when it is measured with respect to atmospheric pressure?

<p>Gauge pressure (Pguage)</p> Signup and view all the answers

What is the pressure called when it is measured with respect to absolute zero pressure?

<p>Absolute pressure (Pabs)</p> Signup and view all the answers

What law of thermodynamics states that energy can neither be created nor destroyed during a process?

<p>First law of thermodynamics</p> Signup and view all the answers

What term refers to the property of a system that can neither be created nor destroyed during a process?

<p>Energy</p> Signup and view all the answers

What term refers to the property of the system that is a measure of the total heat content?

<p>Enthalpy</p> Signup and view all the answers

What is the term for the representation of thermodynamic processes on a P-V diagram?

<p>Representation of Thermodynamic processes on P-V diagram</p> Signup and view all the answers

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