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
Doss [256]
3 years ago
6

one kilogram of water (V1 = 1003 cm^3*kg-1) in a piston cylinder device at (25°C) and 1 bar is compressed in a mechanically reve

rsible, isothermal process to 1500 bar. Determine Q , W, ΔU , ΔH , and ΔS given that β = 250 x 10-6K-1 and K = 45 x 10^-6 bar-1.
Chemistry
1 answer:
vova2212 [387]3 years ago
4 0

Answer:

Q = -18118.5KJ

W = -18118.5KJ

∆U = 0

∆H = 0

∆S = -60.80KJ/KgK

Explanation:

W = RTln(P1/P2)

P1 = 1bar = 100KN/m^2, P2 = 1500bar = 1500×100 = 150000KN/m^2, T = 23°C = 23 + 273K = 298K

W = 8.314×298ln(100/150000) = 8.314×298×-7.313 = -18118.5KJ ( work is negative because the isothermal process involves compression)

∆U = Cv(T2 - T1)

For an isothermal process, temperature is constant, so T2 = T1

∆U = Cv(T1 - T1) = Cv × 0 = 0

Q = ∆U + W = 0 + (-18118.5) = 0 - 18118.5 = -18118.5KJ

∆H = Cp(T2 - T1)

T2 = T1

∆H = Cp(T1 - T1) = Cp × 0 = 0

∆S = Q/T

Mass of water = 1kg

Heat transferred (Q) per kilogram of water = -18118.5KJ/Kg

∆S = (-18118.5KJ/Kg)/298K = -60.80KJ/KgK

You might be interested in
Please help me I would really appreciate it
denis-greek [22]
The number of students is your independent variable
6 0
3 years ago
Why would you classify hydrogen as a nonmetal 2017?
Alexxx [7]
Yes hydrogen is a non metal 
3 0
3 years ago
Read 2 more answers
What is exchanged between the system and the surroundings ​
BartSMP [9]

Answer:

see note under explanation

Explanation:

When describing system and surroundings the system is typically defined as the 'object of interest' being studied and surroundings 'everything else'. In thermodynamics heat flow is typically defined as endothermic or exothermic. However, one should realize that the terms endothermic and exothermic are in reference to the 'system' or object of interest being studied. For example if heat is transferred from a warm object to a cooler object it is imperative that the system be defined 1st. So, with that, assume the system is a warm metal cylinder being added into cooler water. When describing heat flow then the process is exothermic with respect to the metal cylinder (the system) but endothermic to the water and surroundings (everything else).

8 0
3 years ago
Give two examples of diffusion process in plants and animals.
lisabon 2012 [21]

answer:

in plants

Transport manufactured food from the leaves to others parts of the plant

Facilitates gaseous exchange through the stomata in the leaves to other parts of the plant

in animal

Exchange of respiratory gases across respiratory services

Excretion of nitrogenous waste in some unicellular organisms

Explanation:

Hope it benefit

3 0
3 years ago
Sofia goes on a hike on a trail that is 10 km long. She starts at 2:00pm and ends at
Butoxors [25]

30 m/hrs (add me on discord if u have it Sipstic++#1460 )

8 0
3 years ago
Read 2 more answers
Other questions:
  • Consider the relationship (y+3)2 = b/(x-2), where y and x are variables and bis a constant. On rectangular coordinate paper, wha
    8·1 answer
  • Use the information below to answer the following questions.
    6·1 answer
  • Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li (s) + N2 (g) → 2Li3N (s) In a particular ex
    12·1 answer
  • Which polyatomic ion forms A neutral compound when combined with group a1 monotonic ion in a 1:1
    13·1 answer
  • 24. As the first five elements in Group 14 are considered in order from top to bottom, there are changes
    13·1 answer
  • Choose the species that is incorrectly matched with its electronic geometry.
    15·1 answer
  • How are algae and polyps related?
    12·2 answers
  • What Happens When extra Solute is added to unsaturated ,saturated and supersaturated solution​
    11·1 answer
  • The following table lists molecular weight data for a polypropylene material. Molecular Weight Range (g/mol) xi wi
    6·1 answer
  • How many electrons are in the ππ system of borazine.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!