« previous next »

Author Question: Calculate the amount of heat required to change 5 lb of 32F ice to water. A) No extra heat is ... (Read 80 times)

madam-professor

  • Hero Member
  • *****
  • Posts: 584
on: Jul 24, 2018
Calculate the amount of heat required to change 5 lb of 32F ice to water.
 
  A) No extra heat is required because the ice is already at the melting temperature.
  B) 5 lb  32F  0.5 BTU/lb = 80 BTU
  C) The amount of heat required cannot be calculated without knowing the ending temperature of the water.
  D) 5 lb  144 BTU/lb = 720 BTU

Question 2

What is the head pressure of a tank 10 ft in height?
 
  A) 43.3 psi B) 433 psi C) 0.433 psi D) 4.33 psi


ktidd

  • Sr. Member
  • ****
  • Posts: 319
Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Wind and Water Erosion of Cropland Soils Wind and Water Erosion of Cropland Soils
Change Women’s Roles Change Women’s Roles
Ancient Climate Change: Following the Cretaceous Ancient Climate Change: Following the Cretaceous
Ice cores as indicators of environmental change Ice cores as indicators of environmental change
Calculate the number of sodium ions in 0.375moles of Na2CO3.10H20 Calculate the number of sodium ions in 0.375moles of Na2CO3.10H20
Calculate KP for the following reactions at the indicated temperature. Calculate KP for the following reactions at the indicated temperature.
Video: Hyperglycemia Animation

For a complete list of videos, visit our video library