Question
Asked Nov 1, 2019

Calculate the energy required to heat 0.40kg of water from 44.4°C to 62.6°C .Assume the specific heat capacity of water under these conditions is. 4.18J·g−1K−1. Be sure your answer has the correct number of significant digits.

check_circle

Expert Answer

Step 1

Absorbed heat energy is given as,

Q SxmxAT
Where
Q Absorbed heat energy
S Specific heat capacity
mMass
AT Temperature change
help_outline

Image Transcriptionclose

Q SxmxAT Where Q Absorbed heat energy S Specific heat capacity mMass AT Temperature change

fullscreen
Step 2

The give values are substituted in above equation to get required energy...

QSxmxAT
-4.18 J/gKx0.40k gx(62.6°C44.4°C)
= 4.18 J/gKx400 gx(335.6K-317.4K)
=4.18J/gKx400 gx 18.2K
30430.4 J
=30.43kJ
help_outline

Image Transcriptionclose

QSxmxAT -4.18 J/gKx0.40k gx(62.6°C44.4°C) = 4.18 J/gKx400 gx(335.6K-317.4K) =4.18J/gKx400 gx 18.2K 30430.4 J =30.43kJ

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Chemistry

Chemical Thermodynamics

Related Chemistry Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: What is the change in internal energy of the air within the piston?   The air within a piston equipp...

A: Given, Heat absorbed = 555J.            Initial volume = 0.10L.            Final volume = 0.87L.    ...

question_answer

Q: A coin dealer offered a rare silver coin, suspected that it might be a counterfeit nickel copy. The ...

A: Given,Weight of coin = 17.0 gWeight of water = 29.0 gSpecific heat of nickel, s = 0.445 J/goCSpecifi...

question_answer

Q: Write the chemical formula for the sulfate ion 4+ 3+ 2+ + 4- 0 8 7 6 5 3 2 1 19 6 5 7 8 12 (aq) (g) ...

A: The chemical formula for the sulphate ion is -SO42-(aq)

question_answer

Q: Question 3

A: The balanced chemical reaction is shown as follows:

question_answer

Q: For the aqueous [Ag(CN)2]^-    complex Kf =3.0x10^20 at 25°C.Suppose equal volumes of 0.0068M AgNO3 ...

A: Let us assume that volume of AgNO3 = Volume of KCN =V L.So, number of moles of AgNO3 = (molarity of ...

question_answer

Q: A mole of photons in the ultra-violet region of the electromagnetic spectrum has an energy of 3.71 ×...

A: Given that,Energy of photon is

question_answer

Q: When backpacking in wilderness, hickers often boil water to sterilize it for drinking. Suppose that ...

A: Given data:

question_answer

Q: Suppose a 250.mL flask is filled with 0.80mol of CO, 0.60mol of NO and 0.20mol of CO. The following ...

A: The molarity of a solution refers to the concentration of the given solution and can be defined as t...

question_answer

Q: Calculate the energy of the red light emitted by a neon atom with a wavelength of 680 nm.

A: Energy of electromagnetic radiation is given by