Start networking and exchanging professional insights

Register now or log in to join your professional community.

Follow

The enthalpy of steam is defined as:

<p><strong>1] Difference of internal energy and product of pressure and volume.</strong></p> <p><strong>2] Product of internal energy and pressure.</strong></p> <p><strong>3] Sum of internal energy and product of pressure and volume.</strong></p> <p><strong>4] Amount of heat change divided by the absolute temperature.</strong></p>

user-image
Question added by Alex Al Yazouri , General Manager , Al Mushref Cooperative Society
Date Posted: 2014/12/28
Wolf Klaas Kinsbergen
by Wolf Klaas Kinsbergen , Managing Director, Designer , ingenieursbureau KB International NV

Enthalpy of a system is defined as the mass of the system - m - multiplied by the specific enthalpy - h - of the system and can be expressed as:

H = m h    (1)

 

so: 3] Sum of internal energy and product of pressure and volume.

Elke Woofter
by Elke Woofter , Project Assistant , American Technical Associates

My answer is 3 - Sum of internal energy and product of pressure and volume 

hemed.chem.purdue.edu/genchem/topicreview/bp/ch5/energy.php   

By definition, the enthalpy of the system is the sum of the internal energy of the system plus the product of the pressure of the gas in the system times its volume. .... Use your experience with ice, water, and steam to predict which of the following ...

Alex Al Yazouri
by Alex Al Yazouri , General Manager , Al Mushref Cooperative Society

3] Sum of internal energy and product of pressure and volume.

Basit Ali
by Basit Ali , Director of Engineering , Laverda Suites & Villas / Blue Bay Resorts

Option3

Carlos Esquivel
by Carlos Esquivel , Technical Manager , CERSA (Compania de Energias Renovables S.A. de C. V.)

The Enthalpy is the preferred expression of system energy changes in many chemical, biological, and physical measurements, because it simplifies certain descriptions of energy transfer. It cannot be calculated directly and thats why we should calculate it by knowing the sum of the internal energy plus the product of pressure and volume. 

Answer is definitely is choice [3] Sum of internal energy and product of pressure and volume.

More Questions Like This