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
Fiesta28 [93]
2 years ago
5

If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the

refrigerator if it released 258J of energy to the room?
Chemistry
1 answer:
Alchen [17]2 years ago
4 0

In the first law of thermodynamics, it states when heat is converted into energy, where as the total energy in the room could transform into another but can never be created or destroyed. If you release 258J of energy in the room, 258J would also be removed from the food according to the isolating system.

Your answer would be 258J.

You might be interested in
True or False: the force of attraction that holds two atoms together is called a chemical bond
Genrish500 [490]
The answer is true.
5 0
2 years ago
I need help with this question
KiRa [710]
A challenge they could face is that the plants are not used to the climate in the new area . (sorry if it’s wrong)
5 0
2 years ago
How many grams of water can be produced from 4.6 grams of Hydrogen and 7.3 grams of Oxygen?
12345 [234]

Answer:

The answer to your question is 8.21 g of H₂O

Explanation:

Data

mas of water = ?

mass of hydrogen = 4.6 g

mass of oxygen = 7.3 g

Balanced chemical reaction

                   2H₂  +  O₂  ⇒   2H₂O

Process

1.- Calculate the atomic mass of the reactants

Hydrogen = 4 x 1 = 4 g

Oxygen = 16 x 2 = 32 g

2.- Calculate the limiting reactant

Theoretical yield = H₂/O₂ = 4 / 32 = 0.125

Experimental yield = H₂/ O₂ = 4.6/7.3 = 0.630

From the results, we conclude that the limiting reactant is Oxygen because the experimental yield was higher than the theoretical yield.

3.- Calculate the mass of water

                   32 g of O₂ ---------------- 36 g of water

                   7.3 g of O₂ ---------------   x

                          x = (7.3 x 36) / 32

                          x = 262.8 / 32

                          x = 8.21 g of H₂O

4 0
3 years ago
What is the mass of ethyl alcohol that fills a 250.0-mL graduated cylinder? The density of ethyl alcohol is 0.789 g/mL.
UNO [17]

Answer: 157.8 g

Explanation: I hope this help my child UwU

What is the weight of the ethyl alcohol that exactly fills a 200.0 mL container the density of ethyl alcohol is 0.789 g ml?

Density review

A

B

What is the weight of the ethyl alcohol that exactly fills a 200.0 mL container? The density of ethyl alcohol is 0.789 g/mL.

g = (0.789 g/mL) (200.0 mL) = 158 g

3 0
3 years ago
Read 2 more answers
ADD NOTE
Nikitich [7]

Answer:

2.00 M KOH

Explanation:

Divide moles by volume and make sure your volume is in LITERS, not mL.

0.0400 mol KOH / 0.0200 L = 2.00 M KOH

5 0
3 years ago
Other questions:
  • (c) ammonium carbonate + lead nitrate ? Step-by-step solution Step 1 of 3 v Step 2 of 3 v Step 3 of 3 ^ c) The ions formed in so
    7·1 answer
  • In a chemical reaction, the products are
    5·2 answers
  • Read the following chemical equation.
    14·2 answers
  • HgC2H6
    5·1 answer
  • 5 points<br> What do you think photosynthesis means ?
    7·1 answer
  • What number do we use to represent the connection of a solid, liquid, or solvent?
    14·1 answer
  • ASAP HELP
    12·2 answers
  • Which of these substances are most likely crystalline solids? Select all that apply.
    15·2 answers
  • Reaction 1: Solid sodium hydroxide dissolves in water to form an aqueous solution of ions. ????????????H(????) → ????????+(?????
    8·1 answer
  • 3. Skunks run about 10 miles per hour and won't try to outrun a predator. Instead, they
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!