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

Author Question: A 25-L container holds ideal hydrogen (H2) gas at a gauge pressure of 0.25 atm and a temperature of ... (Read 174 times)

genevieve1028

  • Hero Member
  • *****
  • Posts: 601
on: Jul 29, 2018
A 25-L container holds ideal hydrogen (H2) gas at a gauge pressure of 0.25 atm and a temperature of 0C.
 
  What mass of hydrogen gas is in this container? The ATOMIC mass of hydrogen is 1.0 g/mol, the ideal gas constant is R = 8.314 J/mol  K = 0.0821 L  atm/mol  K, and 1.00 atm = 101 kPa.
  A) 1.4 g
  B) 2.8 g
  C) 4.2 g
  D) 5.6 g
  E) 6.3 g

Question 2

It is a well-known fact that water has a higher specific heat than iron. Now, consider equal masses of water and iron that are initially in thermal equilibrium. The same amount of heat, 30 calories, is added to each one. Which statement is true?
 
  A) They remain in thermal equilibrium.
  B) They are no longer in thermal equilibrium; the iron is warmer.
  C) They are no longer in thermal equilibrium; the water is warmer.
  D) It is impossible to say without knowing the exact mass involved.
  E) It is impossible to say without knowing the exact specific heats.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

KKcool

  • Sr. Member
  • ****
  • Posts: 340
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: B


genevieve1028

  • Member
  • Posts: 601
Reply 2 on: Jul 29, 2018
Excellent

yeungji

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Hormonal and nervous factors influencing blood pressure Hormonal and nervous factors influencing blood pressure
The hypothalamus helps regulate body temperature. The hypothalamus helps regulate body temperature.
The movement of water vapor molecules exerts vapor pressure on surfaces. The movement of water vapor molecules exerts vapor pressure on surfaces.
The anterior arm (shoulder, axilla, anticubital, and inner wrist areas). Approach deep pressure in ... The anterior arm (shoulder, axilla, anticubital, and inner wrist areas). Approach deep pressure in ...
Correct alignment for stacking the joints to apply thumb pressure to acupoints. Correct alignment for stacking the joints to apply thumb pressure to acupoints.
When 1.50 mol of CH4(g) reacts with excess Cl2(g) at constant pressure according to the ... When 1.50 mol of CH4(g) reacts with excess Cl2(g) at constant pressure according to the ...
Video: Coronary Heart Disease Animation

For a complete list of videos, visit our video library