1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
VikaD [51]
3 years ago
10

Use the worked example above to help you solve this problem. An electrical heater is operated by applying a potential difference

of 49.4 V to nichrome wire of total resistance 8.04 Ω. (a) Find the current carried by the wire and the power rating of the heater. I = 6.14 Correct: Your answer is correct. A P = 303.5 Correct: Your answer is correct. W (b) Using this heater, how long would it take to heat 2.10 103 moles of diatomic gas (e.g., a mixture of oxygen and nitrogen, or air) from a chilly 10°C to 25°C? Take the molar specific heat at constant volume of air to be 5 2 R. s (c) How many kilowatt-hours of electricity are used during the time calculated in part (b) and at what cost, at $0.14 per kilowatt-hour? U = kWh cost $ EXERCISEHINTS: GETTING STARTED | I'M STUCK! (a) A hot-water heater is rated at 4.69 103 W and operates at 2.40 102 V. Find the resistance in the heating element and the current. R = Ω I = A (b) How long does it take to heat 125 L of water from 25.6°C to 54.0°C, neglecting conduction and other losses? (The specific heat of water is 4.186 J/g · K.) s (c) How much does it cost at $0.14/kWh? $

Chemistry
1 answer:
ioda3 years ago
5 0

Answer:

Part A:

a) Current = 6.14 A; Power = 303.5 W

b) time = 0.6 hours

c) cost = $ 0.025

Part 2:

a) Resistance = 12.28 ohms; Current = 19.54 A

b) time = 0.88 hours

c) cost = $0.578

Explanation:

The explanation is found in the attachments below:

You might be interested in
What is the difference between hot and cold atoms?
lesya [120]
In hot water the molecules move faster versus In cold water they move slower (hope that helps)
6 0
3 years ago
5) How many moles are in 5 Liters of H2 gas?
telo118 [61]
From 5 L to moles, just divide 5 by 22.4. I got 0.22 moles of H2.
From 5 moles to liters, just multiply 5 by 22.4. I got 112 L of H2. 
4 0
3 years ago
Yea I need help plzzz!
kirill115 [55]
The right answer is shape
4 0
3 years ago
Read 2 more answers
HCL ejercicio de química
marin [14]
What I can’t understand I’m American
5 0
3 years ago
Read 2 more answers
GoOd MoRnInG <br> EvErY OnE <br> BlA BlA BlA BlA
azamat

Answer:

you too ^^

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which metal in Period 5 is very reactive and has two valence electrons in each atom?
    9·2 answers
  • Fill in the following information for the element
    6·2 answers
  • A sample of 1.000 g of a compound containing carbon and hydrogen reacts with oxygen at elevated temperature to yield 0.692 g H₂O
    14·1 answer
  • In the spectrophotometric analysis of benzene, the calibration curve has a slope of 195 AU/M and an intercept of 0.079 AU. If an
    10·1 answer
  • Nuclear fusion is the process used to generate electricity in nuclear power plants. is the process in which a large nucleus spon
    5·2 answers
  • 1. What's the difference between a hypothesis and a theory? a. "Theory" is another word for "fact;" "hypothesis" is another word
    11·1 answer
  • Which is the most reactive metal and why?​
    7·1 answer
  • Select the correct layer.<br> In which layer is lithification most likely to occur?
    12·1 answer
  • Two substances (A and B) are placed at each end of a glass tube. The vapors of the substances form a solid that is closer to sub
    6·1 answer
  • When cells or organisms maintain a stable internal state in a changing environment is called?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!