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
kotegsom [21]
2 years ago
6

A student did an experiment to determine the specific heat capacity of a metal alloy. The student put a sample of the alloy in b

oiling water for several minutes, then quickly transferred the alloy into a calorimeter containing water originally at 25°C. The temperature of the water was monitored over time. The data are given in the graph above.
(a) What is the value of ΔT that the student should use to calculate the value of q, the heat gained by the water?

(b) In terms of what occurs at the particulate level, explain how the temperature of the water increases after the alloy sample is added.

(c) The student claims that thermal equilibrium is reached at time t. Justify the student’s claim. In your justification, include a description of what occurs at the particulate level when the alloy and the water have reached thermal equilibrium.

Chemistry
1 answer:
guapka [62]2 years ago
7 0

Answer:

a) ∆T=T1-T2

b) At the particle level the temperature changes are the result of the added energy causing the particles of water to move more vigorously. Either the particles of solid vibrate more vigorously about their fixed positions or the particles of liquid and gas move about their container more rapidly.

c) The state in which two substances in physical contact do not share any heat energy. The temperature of two substances in thermal equilibrium is said to be the same. Also see thermodynamics.

Explanation:

hope that helped good luck!

You might be interested in
Why do the elements in a group all behave similarly
Svetradugi [14.3K]

Answer:

See the explanation below, please.

Explanation:

The elements of the periodic table that belong to the same group (each column) have similar physical and chemical properties. This is because they have the same number of electrons in their last electronic layer.

Example of electronic configuration of elements of GROUP IA:

Hydrogen: 1s ^ 1

Lithium: 1s ^ 2 2s ^ 1

6 0
3 years ago
A 23.6 ml of slat water has a mass of 26.47 grams. calculate its density.
bija089 [108]

The density is 1.12161 g/ml

7 0
2 years ago
Read the information about the halogen family.
Elodia [21]

Answer:

See explanation

Explanation:

Chlorine is a member of the halogen family known as a toxic yellowish green gas. Inhalation of chlorine for a prolonged period of time leads to  pulmonary edema. If a person comes in contact with compressed liquid chlorine the person may experience frostbite of the skin and eyes.

However chlorine is very useful in water disinfection and is preferred in water treatment because it provides residual disinfection of the treated water.

Chlorine gas may be dissolved in NaOH to form oxochlorate I which is used as a bleach in cleaning.

7 0
3 years ago
Calculate the molarity of a solution prepared by dissolving 11.9 g of beryllium chloride in a total volume of 292.2 mL of soluti
anyanavicka [17]

Answer:

8793

Explanation:

8 0
3 years ago
3. 78 mL of 2.5 M phosphoric acid is neutralized with 500 mL of potassium hydroxide. What is the
xenn [34]

Hence, concentration of base is 1.17 M
7 0
2 years ago
Other questions:
  • If I wrote 7h2o, how many hydrogen atoms do I have now? How many oxygen atoms?
    13·2 answers
  • a 20.4 g aluminum sphere and a 49.4 g iron sphere are both added to 75.2 mL of water contained in a graduated cylinder. what is
    10·2 answers
  • How many molecules of lactate can one molecule of lactate dehydrogenase act on in 21 minutes?
    5·1 answer
  • What happens to the coefficients in a reaction when writing the equilibrium constant expression?
    9·1 answer
  • Metamorphic rocks that melt in a hot fluid can re-crystallize into a different form of rock. true or false
    9·1 answer
  • [10 pts]Iron and vanadium both have the BCC crystal structure and V forms a substitutional solid solution in Fe for concentratio
    5·1 answer
  • (7th grade science question)
    14·1 answer
  • If you were to have a bottle containing compound X in your closet, what phase would it most likely be in? *
    7·1 answer
  • Find the average atomic mass round and to the second decimal place (0.01)
    15·1 answer
  • This question is about salts.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!