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
Temka [501]
3 years ago
12

What is the specific latent heat of a fussion for a substance that takes 550 kj to melt 14 kg at 262 k?

Chemistry
1 answer:
Lina20 [59]3 years ago
7 0

The latent heat is correlated with energy as follows:

Q = mL

550 * 103 = 14 * 103 * L

L = 39.285 J /g

Thus, latent heat of the substance is 39.285 j /g

You might be interested in
A sample of nitrogen gas, (N2), occupies 45.0 mL at 27.00∘C and 80.0 kPa. What will be the pressure if the gas is cooled to −73.
maxonik [38]

Answer:

The new pressure is 53.3 kPa

Explanation:

This problem can be solved by this law. when the volume remains constant, pressure changes directly proportional as the Aboslute T° is modified.

T° increase → Pressure increase

T° decrease → Pressure decrease

In this case, temperature was really decreased. So the pressure must be lower.

P₁ / T₁ = P₂ / T₂

80 kPa / 300K =  P₂/200K

(80 kPa / 300K) . 200 K = P₂ →  53.3 kPa

6 0
3 years ago
Um.. i dont need help lol
Tasya [4]

Answer:

thats cool mate

Explanation:

hope ya have a good day, im answering just for the points tbh

7 0
3 years ago
Read 2 more answers
The mass number of a fluorine (F) atom is 19 . How many neutrons does it have
kiruha [24]
I think it would have 10 neutrons. Hope this helps :)
5 0
3 years ago
A 298 lb person must receive Heparin, determine the number of units given every hour (Heparin 8.0 units/kg per hour). Enter your
yarga [219]

Answer:

1,081.1 units of heparin should be given to 298 lb person.

Explanation:

We are given:

Weight of the person = 298 lb = 135.143 kg

Conversion factor used:

1 lb = 0.4535 kg

Number of unit of heparin to be given in an hour = 8.0 units/kg

Number of units given to the patient weighing 135.143 kg :

8.0 units/kg\times 135.143 kg=1,081.144 units\approx 1,081.1 units

1,081.1 units of heparin should be given to 298 lb person.

4 0
3 years ago
Why is glass brittle
WITCHER [35]
Glass doesn't contain planes of atoms that can slip past each other, so there is no way to relieve stress. It has many microscopic cracks that act as seeds for fracture. It’s molecular structure is composed of tetrahedral crystals so it ruptured easily under stress
6 0
4 years ago
Other questions:
  • A helium balloon occupies a volume of 1.8 L at 5°C.<br>What volume will it occupy at 85.0°C?​
    11·1 answer
  • Object A has a temperature of 287 Kelvin, object B has a temperature of 374 Kelvin. In what direction will thermal energy flow?
    12·2 answers
  • A sample of carbon 12 has a mass. Of 6.00g how many atoms of carbon 12 are in the sample
    6·1 answer
  • A chemical reaction is carried out in a closed container. The energy absorbed by the chemical reaction is 50 kJ. What is the ene
    7·1 answer
  • classify each solution as either an acid or a base using the properties that are stated. what are two ways these solutions are s
    9·1 answer
  • In Environment A, trees are growing back and some of the larger animals are returning to a logged forest. In Environment B, lich
    11·2 answers
  • An electrolysis reaction is
    15·1 answer
  • Use the drop-down menus to classify each of the following as an addition, substitution, elimination, or
    12·1 answer
  • Question # 10
    15·1 answer
  • 6. Which of the following is a binary compound?<br> a. CaCO3<br> b. CuSO4<br> c. H2O<br> d. Pb(NO3)2
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!