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
Vaselesa [24]
3 years ago
14

What units are used to express energy transfer?

Chemistry
2 answers:
Lubov Fominskaja [6]3 years ago
7 0
Atom is the unit used to express energy transfer
hichkok12 [17]3 years ago
4 0
It should be watts. <span>A </span>watt<span> is the number of </span>joules generated per second. <span>A kilocalorie is 4,184 </span>joules<span>, the amount of energy that will heat 1 kilogram of water by 1 degree </span>Celsius<span>. </span> 
You might be interested in
Heating a substance____the speed at which molecules move
guapka [62]

Answer:

Heating a substance increases the speed at which molecules move.

Explanation:

4 0
3 years ago
Read 2 more answers
Which of the following is the largest volume? (B?)
vekshin1
Yeah, it would be B (1.2 x 102 m^3) because the measurement gave it away even though other numbers were higher, however, the measurements for those were smaller in size.
6 0
3 years ago
when carbon dioxide is bubbled through lime water the solution first turn milky and to colour less . Explain why these changes o
Annette [7]

Answer:

When excess of carbon dioxide is passed in lime water, calcium carbonate is converted to calcium bicarbonate which is soluble, hence the milkiness due to calcium carbonate disappears.

Explanation:

Ca(OH)2+CO2 → CaCO3 (Milkiness) ↓+H2O

CaCO3+H2O+CO2 → Ca(HCO3)2 (soluble)

5 0
3 years ago
1. Compare the masses and the charges for the three particles which make<br> up<br> the atom.
storchak [24]

Answer:

The charge on a neutron=1+-/neutral

It has a mass 1

The charge on electron is 1-/negative

It's mass is 1/1840

The charge on a proton is 1+

It has a mass 1 too.

Explanation:

8 0
3 years ago
A mixture of gases A2 and B2 are introduced to a slender metal cylinder that has one end closed and the other fitted with a pist
REY [17]

Answer:

q < 0, w > 0, the sign of ΔE cannot be determined from the information given

Explanation:

Determination of sign of q

Temperature of the water bath before the reaction = 25 °C

Temperature of the water bath after the completion of the reaction = 28 °C

After the completion of the reaction, temperature of the water bath is increased that means heat is released during the reaction and flows out of the system.

If heat is absorbed by the system, then q is indicated by positive sign and if heat is released by the system, then q is indicated by negative sign.

As in the given case, heat is released by the system, so sign of q is negative, or q < 0

Determination of sign of w

After the completion of the reaction, piston moved downward, that means volume of the system decreases or compression occur. During the compression, work is done on the system.

if work is done on the system, sign of w is positive.

If work is done by the system, sign of w is negative.

In the given case, work is done on the system, therefore sign of w is positive, or w > 0

Determination of sign of ΔE

Relationship between ΔE, q and w is given by first law of thermodynamics:

ΔE = q + w

In this case, q is positive and w is negative, so the sign of ΔE depends of magnitude of q and w. As magnitude of w and q cannot be determined in this case, thus, the given information is insufficient for the determination of sign of ΔE.

So, among the given option, option c is correct.

q < 0, w > 0, the sign of ΔE cannot be determined from the information given

3 0
3 years ago
Other questions:
  • Picking up a paper clip with a magnet. Physical change, Chemical change, or neither
    12·1 answer
  • Calculate the molar mass<br> CaCl2<br> Ca(NO3)2 <br> Ca(OH)2 <br> CaSO4 <br> BaCl2
    12·2 answers
  • Which of the following is a chemical change?
    11·2 answers
  • Express (158 lb)2 to three significant figures with appropriate units
    8·2 answers
  • Sketch the structure of the nitrogen containing product that is formed when ethalymine reacts with water.
    6·1 answer
  • 1. Hydrogen gas burns in air according to the equation below.
    7·1 answer
  • Please help me immediately I will mark you as brainiest.
    12·1 answer
  • Explain why clouds are generally observed to form only in the troposphere?
    8·2 answers
  • Will give brainliest
    9·1 answer
  • how does the involvement of energy in a decomposition reaction compare to how energy is involved in a combustion reaction?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!