This topic contains a solution. Click here to go to the answer

Author Question: 3.0 moles of an ideal gas with a molar heat capacity at constant volume of 4.9 cal/(molK) and a ... (Read 87 times)

cookcarl

  • Hero Member
  • *****
  • Posts: 539
3.0 moles of an ideal gas with a molar heat capacity at constant volume of 4.9 cal/(molK) and a molar heat capacity at constant pressure of 6.9 cal/(molK) starts at 300 K and is heated at constant pressure to 320 K,
 
  then cooled at constant volume to its original temperature. How much heat flows into the gas during this two-step process?
  A) -720 cal B) 120 cal C) 0.00 cal D) 710 cal E) -120 cal

Question 2

Two radio antennas are 10 km apart on a north-south axis on a seacoast. The antennas broadcast identical AM radio signals, in phase, at a frequency of 4.70 MHz.
 
  A steamship, 200 km offshore, travels due north at a speed of 15 km/hr and passes east of the antennas. A radio on board the ship is tuned to the broadcast frequency. The reception of the radio signal on the ship is a maximum at a given instant. The time interval until the next occurrence of maximum reception is closest to: A) 5.1 min
  B) 3.8 min
  C) 6.4 min
  D) 7.7 min
  E) 8.9 min



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nital

  • Sr. Member
  • ****
  • Posts: 320
Answer to Question 1

B

Answer to Question 2

A




cookcarl

  • Member
  • Posts: 539
Reply 2 on: Jul 29, 2018
Wow, this really help


miss_1456@hotmail.com

  • Member
  • Posts: 289
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

For a complete list of videos, visit our video library