This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: How much heat is absorbed/released when 20.00 g of NH3(g) reacts in the presence of excess O2(g) to ... (Read 63 times)

Chelseaamend

  • Hero Member
  • *****
  • Posts: 545
on: Aug 27, 2018
How much heat is absorbed/released when 20.00 g of NH3(g) reacts in the presence of excess O2(g) to produce NO(g) and H2O(l) according to the following chemical equation? 4 NH3(g) + 5 O2(g)  4 NO(g) + 6 H2O(l) H = +1168 kJ
 
  A) 342.9 kJ of heat are absorbed.
  B) 342.9 kJ of heat are released.
  C) 1372 kJ of heat are absorbed.
  D) 1372 kJ of heat are released.

Question 2

Which of the following equations shows an incorrect relationship between pressures given in terms of different units?
 
  A) 1.20 atm = 122 kPa
  B) 152 mm Hg = 2.03  104 Pa
  C) 0.760 atm = 578 mm Hg
  D) 1.0 torr = 2.00 mm Hg
  E) 1.00 atm = 760 torr


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jazzlynnnnn

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

D


Chelseaamend

  • Member
  • Posts: 545
Reply 2 on: Aug 27, 2018
Great answer, keep it coming :)

kilada

  • Member
  • Posts: 311
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Regulation of heat exchange in the skin. Regulation of heat exchange in the skin.
Medicinal leeches on a patient’s neck. Today leeches are sometimes used in microsurgery to prevent b Medicinal leeches on a patient’s neck. Today leeches are sometimes used in microsurgery to prevent b
Energy is released from the breaking of the phosphate bond in ATP when converting to ADP. Energy is released from the breaking of the phosphate bond in ATP when converting to ADP.
a) Preformed mediators released by mast cells and their actions. (b) Newly synthesized mediators ... a) Preformed mediators released by mast cells and their actions. (b) Newly synthesized mediators ...
Describe how fat is digested, absorbed, and transported in the body Describe how fat is digested, absorbed, and transported in the body
How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C
Video: Optic Nerve and Optic Disk Animation (Part 2 of 2)

For a complete list of videos, visit our video library