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
Alex787 [66]
3 years ago
5

First law of Thermodynamics

Chemistry
1 answer:
guapka [62]3 years ago
7 0

Answer:

Thermal energy is taken from heat sink in higher temperature. A thermal power machine does mechanical energy using part of the heat.

Part of heat taken are given in cold reservoir in lower temperature

Explanation:

You might be interested in
What is the solubility of a solid in a solvent?
patriot [66]

Answer:

Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent. It is measured in terms of the maximum amount of solute dissolved in a solvent at equilibrium. ... The solvent is often a solid, which can be a pure substance or a mixture.

Explanation:

5 0
3 years ago
A drop of water (H20) has a mass of 2.34 x 10e-2 grams. How many
creativ13 [48]

Answer:

2333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333

Explanation:

2x3=1000

3 0
3 years ago
Which has the highest electronegativity value?
AnnZ [28]
Which has the highest electronegativity value?
A
hydrogen

B
calcium

C
helium

D
fluorine d because fluorine has a higher group number

8 0
3 years ago
How many grams of Mg are needed to produce 224 g of MgO in the complete reaction of Mg
zmey [24]

Answer:

134.4 g of Mg

Explanation:

reaction:

2Mg + O2 ➡️ 2MgO

1) find the mol of MgO

mol = mass / molar mass

mass = 224 g

molar mass = 24+16 = 40

mol = 224 / 40

= 5.6 moles

2 mol = 5.6 moles

2) find the mass of Mg

mass = mol × molar mass

mol = 5.6

molar mass = 24

mass = 5.6 × 24

= 134.4 g

7 0
3 years ago
The element beryllium (Be, atomic number 4 and atomic mass 9) is right above magnesium (Mg, atomic number 12 and atomic mass 24)
tia_tia [17]

the answer is 8 electrons

7 0
3 years ago
Read 2 more answers
Other questions:
  • Why do tropical cyclones spawn around ? please include 5 sentences
    15·1 answer
  • Nuclear energy can come from
    15·1 answer
  • Is it convection or conduction?
    13·2 answers
  • What is the ph of a solution with a hydroxide ion concentration of 10–10m?
    14·1 answer
  • What happens when oppositely charged ions get close together?
    14·2 answers
  • To a 2.00-L flask, 2.00 mol each of H2and I2is added. The Kcfor this reaction is 55.3. Determine the equilibrium concentrations
    8·1 answer
  • How to prepared sodium chloride solution in the laboratory.​
    7·1 answer
  • What is the Electronegativity difference of C and S?
    8·1 answer
  • What is a acid and how does it react with metals (chemical reaction)?
    12·1 answer
  • Which scenario best exemplifies the way a signal is passed down an axon coated with myelin sheath?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!