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
Lelu [443]
3 years ago
12

The work done to compress a gas is 83.0 J. As a result, 27.0 J of heat is given off to the surroundings. Calculate the change in

energy of the gas.
Chemistry
1 answer:
stellarik [79]3 years ago
5 0

Answer:

ΔU° = 56.0 J

Explanation:

Step 1: Given data

  • Work done to compress the gas (w): 83.0 J (When work is done on the gas, w is positive).
  • Heat given off to the surroundings (q): -27.0 J (When heat is released to the surroundings, q is negative)

Step 2: Calculate the change in the internal energy of the gas (ΔU°)

The internal energy of a gas is the energy contained within it. We can calculate it using the following expression.

ΔU° = q + w

ΔU° = -27.0 J + 83.0 J

ΔU° = 56.0 J

You might be interested in
If an atom or ion has an atomic number of 3, 2 electrons, and the electronic configuration is 2, what is the mass number? ​
rjkz [21]
It’s mass number would be 5 as it’s the protons and the neutrons added together
7 0
3 years ago
If the density of pure water is 0.9922 g/mL at 40 ºC, calculate its theoretical molarity at that temperature. Report to 4 sig fi
OleMash [197]
Answer is: theoretical molarity of water is 55.1222 mol/L.<span>
d(H</span>₂O) = 0.9922 g/mL.
M(H₂O) = 2 · Ar(H) + Ar(O) · g/mol.
M(H₂O) = 2 + 16 · g/mol = 18 g/mol.
c(H₂O) = d(H₂O) ÷ M(H₂O).
c(H₂O) = 0.9922 g/mL ÷ 18 g/mol.
c(H₂O) = 0.0551 mol/mL.
c(H₂O) = 0.0551 mol/mL · 1000 mL/L = 55.1222 mol/L.
3 0
4 years ago
An ate or ite at the end of a compound name usually indicates that the compound contains___________.
Ymorist [56]

Answer:

D

Explanation:

According to IUPAC nomenclature, a negative polyatomic ion has its name ending in 'ate' or 'ite'

As in carbonate (CO3^2-)

Arsenite (AsO3-)

3 0
3 years ago
Read 2 more answers
What is the Electron Center Geometry of a CH3 carbon.
wel

Answer:

tetrahedral geometry

<h3>CHCH2O- CH2CH3</h3>

Explanation:

There are several centers of interest. Each carbon with all single bonds is the center of a tetrahedral geometry.

6 0
2 years ago
Which statememt describes gravity? Select three options
Fofino [41]

Gravity is a force which tries to pull two objects toward each other. Anything which has mass also has a gravitational pull. The more massive an object is, the stronger its gravitational pull is. Earth's gravity is what keeps you on the ground and what causes objects to fall.

8 0
4 years ago
Other questions:
  • What is the major cause of the Earth’s magnetic field?
    10·2 answers
  • What is the basic unit for measuring length
    10·2 answers
  • The sum of protons and neutrons in the nucleus of an atom is called the
    5·2 answers
  • HELP PLZ!!! A sample contains only the compound CaCl2 and water. When it is dried, its weight decreases from 5.00g to 4.24g. Wha
    7·2 answers
  • How many valence electrons are present in this atom?
    14·1 answer
  • Solid cesium bromide has the same kind of crystal structure as CsCl which is pictured below: If the edge length of the unit cell
    11·1 answer
  • An element has two isotopes. 90% of the isotopes have a mass number of 20 amu, while 10% have a mass number of 22 amu. Calculate
    13·1 answer
  • Which statement best describes the Modern Atomic Theory?
    15·1 answer
  • What is the initial temperature (in Celsius) of a 675 ml balloon if the
    5·1 answer
  • If pea plants with the genotypes RR and rr cross, what genotype will their offspring all have?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!