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
bezimeni [28]
3 years ago
6

if you help me ill give you more brainly's. plzz help.At 1 atm, how much energy is required to heat 37.0 g of H2O(s) at –10.0 °C

to H2O(g) at 155.0 °C? Helpful constants can be found here.
Chemistry
1 answer:
artcher [175]3 years ago
4 0

Answer:

116.3 kJ

Step-by-step explanation:

Three heat transfers are involved

q = Heat to warm ice + heat to melt ice + heat to warm water + heat to evaporate water + heat to warm steam

q =      q₁      +     q₂        +     q₃       +     q₄          +     q₅

q = mC₁ΔT₁ + mΔH_fus + mC₃ΔT₃ + mΔH_vap + mC₅ΔT₅

<em>Step 1</em>: Calculate q₁

m = 37.0 g

C₁ = 2.010 J·°C⁻¹g⁻¹

ΔT₁ = T_f – T_i  

ΔT₁ = 0.0 – (-10.0)

ΔT₁ = 10.0 °C  

q₁ = 37.0 × 2.010 × 10.0  

q₁= 743.7 J

q₁= 0.7437 kJ

===============

<em>Step 2</em>. Calculate q₂

ΔH_fus = 334 J/g

q₂ = 37.0 × 334

q₂ = 12 360 J

q₂ = 12.36 kJ

===============

Step 3: Calculate q₃

C₃ = 4.179 J·°C⁻¹g⁻¹

ΔT₃ = T_f – T_i  

ΔT₃ = 100 – 0  

ΔT₃ = 100 °C

q₃ = 37.0 × 4.179 × 100  

q₃ = 15 460 J

q₃ = 15.46 kJ

===============

<em>Step 4</em>. Calculate q₄

ΔH_vap = 2260 J/g

q₄ = 37.0 × 2260

q₄ = 83 620 J

q₄ = 83.62 kJ

===============

<em>Step 5</em>. Calculate q₅

C¬₅ = 2.010 J·°C⁻¹g⁻¹

ΔT₅ = T_f – T_i  

ΔT₅ = 155.0 – 1000  

ΔT₅ = 55.0 °C

q₅ = 37.0 × 2.010 × 55

q₅ = 4090 J

q₅ = 4.090 kJ

===============

Step 6. Calculate q

q = 0.7437 + 12.36 + 15.46 + 83.62 + 4.090

q = 116.3 kJ

The heat required is 116.3 kJ.

You might be interested in
Hypothesis and Observations
KATRIN_1 [288]

Answer:

his experiment can show the movement of pollutants through the groundwater!

Explanation:

8 0
3 years ago
Would a tighter or a looser cover heat the oven faster? How about no covering at all?
victus00 [196]
A tighter cover because of the gas particles , the gas particles would be trapped causing it to heat up faster. no covering at all would make it heat up the slowest
4 0
3 years ago
What is the amount in moles of a 52 g sample of aluminium fluoride, AIF3
Karo-lina-s [1.5K]

Answer:

Try looking for some kind of answer that has to do with .61904

Explanation:

52 g x 1 mol/ (molar mass of aluminum fluoride) 84 g = .619047619

Sorry if this is wrong but that's my best guess

6 0
2 years ago
Which is the state of matter shown in this figure ?
Veronika [31]

Answer:

Solid

Explanation:

The particles are densely packed and in a defined shape, therefore they would be defined as a solid.

5 0
3 years ago
Read 2 more answers
The term “periodic” helps identify _______ that occur in the table, like electronegativity or atomic radii.
stepan [7]

Answer: ITS C OR B I THINK BUT I HAVE A FEELING ITS ONE OF THOSE

Explanation:

IM SO SORRY IF ITS WRONG KSDBDZDH

8 0
3 years ago
Read 2 more answers
Other questions:
  • 8. A polar covalent bond is due to: unequal sharing of electrons in a covalent bond. the interaction between an ion and a non-io
    5·1 answer
  • How many grams of calcium would be a typical amount in a 60-kg adult?
    15·2 answers
  • Draw the Lewis Structure for NaCl
    14·1 answer
  • g The large negative free energy of hydrolysis of Phosphoenolpyruvate is largely due to _______________ of the enol pyruvate.
    15·1 answer
  • at room temperature oxygen gas travels at 393.5 meters per second. How fast does oxygen travel in mile per hour ?
    14·1 answer
  • In which of the following cases would recrystallization be favored over extraction when purifying a mixture of two solid compoun
    10·1 answer
  • The most useful property of metalloids is their _____.
    6·1 answer
  • Question 1 (6 points) a. Fill in the blanks in the following paragraph to correctly describe the nucleus of an atom. (1 point)an
    12·1 answer
  • Ryan just joined the track team. He runs the 40 yard dash in 6.4 seconds. Explain three human body systems that work together to
    8·1 answer
  • The density of ethanol, C2H5OH, is 0.789 g/mL. How many milliliters of ethanol are needed to produce 15.0 g of CO2 via a combust
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!