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
sweet-ann [11.9K]
3 years ago
10

How much heat is absorbed by 15.5g of steam to turn into liquid water when its temperature is decreased from 120.0°C to 100.0°C?

Chemistry
1 answer:
Natali [406]3 years ago
5 0

Answer:

- 618.8 J.

Explanation:

  • To solve this problem, we can use the relation:

<em>Q = m.c.ΔT,</em>

where, Q is the amount of heat released by steam (Q = ??? J).

m is the mass of the steam (m = 15.5 g).

c is the specific heat of the steam (c of steam = 1.996 J/g.°C).

ΔT is the difference between the initial and final temperature (ΔT = final T - initial T = 100.0°C - 120.0°C = - 20.0°C).

<em>∴ Q = m.c.ΔT</em> = (15.5 g)(1.996 J/g.°C)(- 20.0°C) =<em> - 618.8 J.</em>

You might be interested in
What is the main energy conversion that occurs when you plug in a lamp
MrRa [10]
Elecrtical or Radiantal 
4 0
3 years ago
Read 2 more answers
What is diatomic gas?
Ann [662]
Gases in which the molecules that make it up naturally consist of two atoms of the same type.
3 0
2 years ago
Read 2 more answers
State the periodic law, and explain its relation to electron configuration. (Use Na and K in your explanation.)
mina [271]

Answer:

Explanation:

The period law state that when elements are listed in order of their atomic numbers, the elements fall into recurring groups, so that there is a recurrence of similar properties at regular intervals.

Na and K in the periodic table fall into the same group, this is because they both have one electrons in their outermost shell.

Na 11 -1s2 2s2 2p6 3s1

K 19 - 1s2 2s2 2p6 3s2 3p6 4s1

They share similar chemical and physical properties. Na and K are very reactive metals, they can loose/donate their outermost electron to non metals in other to attain stable octet state.

The form ionic compound when they react with non metals.

5 0
3 years ago
Choose the best explanation for chemical reactions not to produce radioactive particles.
amid [387]
"Only electrons are involved in chemical reactions" is the statement among the following choices given in the question that is the <span>best explanation for chemical reactions not to produce radioactive particles. The correct option among all the options that are given in the question is the third option or option "C". </span>
4 0
3 years ago
Read 2 more answers
A gas exerts a pressure of 1.35 atm. What is the equivalent measures in mmHg?
Pie
1.35atm(760mmHg/1atm)=1026mmHg
8 0
3 years ago
Other questions:
  • How <br> many moles are in 8.5 •10^25
    6·1 answer
  • Determine how many moles of O2 are required to react completely with 6.7 moles C6H14.
    6·1 answer
  • A tire at 21°C has a pressure of 0.82 atm. Its temperature decreases to –3.5°C. If there is no volume change in the tire, what i
    6·1 answer
  • Why must humans find substitutes for many minerals found on Earth? (A) form at an extremely slow rate (B) controlled by other co
    5·1 answer
  • Calculate the number of moles of Cl2 produced at equilibrium when 3.98 mol of PCl5 is heated at 283.9 deg celsius in a vessel ha
    15·1 answer
  • How do you convert ethane to ethanoic acid? Please provide your equation.
    13·1 answer
  • Hydrogen is an ion.<br>Is Hydrogen gas (H2) an ion? ​
    10·1 answer
  • A reproducible measurement is an accurate one. A. True B. False
    11·2 answers
  • (50 POINTS)THIS IS A TIMED TEST PLEASE ANSWER
    14·1 answer
  • Find the hybridization of carbon in acetone​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!