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
Nostrana [21]
2 years ago
14

What is the change in internal energy (in J) of a system that absorbs 0.615 kJ of heat from its surroundings and has 0.247 kcal

of work done on it?
Chemistry
1 answer:
Radda [10]2 years ago
7 0

The change in internal energy of a system is 1648.45 J.

First we convert calories into joule :-

From question, values are given q = 0.615 kJ

                                                     q  = 615 J

                                                  w = 0.247 kcal

                                                  w = 247 Cal = 247 × 4.184 J

                                                  w = 1033.45 J

Formula of change in internal energy, ΔE = q + w

Here, the system absorbs heat from surroundings, so q is positive

Now, put the values of q and w in the formula,

ΔE = q + w

ΔE = 615 + 1033.45 J

ΔE = 1648.45 J

Internal energy is the sum of ability power of the gadget and the machine's kinetic strength. The alternate in internal energy (ΔU) of a response is equal to the heat gained or lost (enthalpy trade) in a reaction whilst the reaction is administered at steady pressure. Inside the study of thermodynamics, a usually perfect gasoline is taken into consideration as a running substance. The molecules of an ideal gasoline are mere mass points that exert no force on each other.

The SI derived unit used to degree strength or paintings. One joule is identical to the electricity used to accelerate a body with a mass of 1 kilogram using one newton of force over a distance of one meter. One joule is also equal to one watt-second.

Learn more about internal energy here:- brainly.com/question/1370118

#SPJ4

You might be interested in
The heat of vaporization for water is 40.7 kJ/mol. How much heat energy must 150.0 g of water absorb to boil away completely? Us
ollegr [7]

Answer:

i picked b

Explanation:

but its based on your own opinion, good luck.

6 0
3 years ago
how many particles of the part that orbits the nucleus is on the shell closest to the center of the atom?
kolezko [41]
There are 2 atoms orbiting it. 
8 0
3 years ago
Read 2 more answers
The number of protons in the nucleus is always equal to the number of neutrons. True or False?
vekshin1
False. The number of neutrons can be more or less than the number of protons.
7 0
3 years ago
Read 2 more answers
How does chemistry affect the food you eat?
Vladimir79 [104]

Answer:

A

Explanation:

6 0
3 years ago
If δh = -70.0 kj and δs = -0.500 kj/k , the reaction is spontaneous below a certain temperature. calculate that temperature. exp
Nina [5.8K]
Answer is: temperature must be less than 140 K.
Gibbs free energy (G) determines if reaction will proceed spontaneously. <span>If the value of G is a negative, the reaction is spontaneous. <span>ΔG = ΔH - T·ΔS.
</span></span>ΔH = -70.00 kJ.
ΔS = -0.500 kJ/K.
-70 kJ = T · (-0.5 kJ/K).
T = -70.00 kJ ÷ (-0.500 kJ/K).
T = 140 K. 
6 0
3 years ago
Other questions:
  • Compound that contains a terminal carbonyl?
    8·1 answer
  • Help?
    5·2 answers
  • (I seriously don't understand what this questin means, please don't delete need all the help i can get)
    8·2 answers
  • Calcium carbonate can be decomposed by heating: CaCO3 - CaO + CO2
    14·1 answer
  • What chemical reaction makes natural rain water slighty acidic​
    13·2 answers
  • What are the effects of the<br> collision forces when objects<br> of the same mass collide?
    12·1 answer
  • A gas has a volume of 6.35 L at 88.6 kPa. What will be the volume at standard pressure? Standard Pressure = 101.3 kPa
    8·1 answer
  • Help plisssssssssss I need helppp
    5·1 answer
  • Benzophenone has a normal freezing point of +48.1 oC, with freezing point depression constant Kfpt = − 9.78 oC/m. A 0.1500 molal
    8·1 answer
  • Whats the answers for brainpop skeletal system
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!