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
Serhud [2]
4 years ago
11

Which phase change is an example of an exothermic process?

Chemistry
1 answer:
Ivenika [448]4 years ago
3 0
It could be either sublimation, freezing or condensation. If i had more information i could tell you which
You might be interested in
A helium-filled balloon has a volume of 2.48 L and a pressure of 150 kPa. The volume of the balloon increases to 2.98 L after yo
Tema [17]

Answer:

THE NEW PRESSURE OF THE HELIUM GAS AT 2.98 L VOLUME IS 124.8 kPa.

AT AN INCREASE ALTITUDE, THERE IS A LOWER PRESSURE ENVIRONMENT AND THE HELIUM GAS PRESSURE DECREASES AND HENCE AN INCREASE IN VOLUME.

Explanation:

The question above follows Boyle's law of the gas law as the temperature is kept constant.

Boyle's law states that the pressure of a fixed mass of gas is inversely proportional to the volume, provided the temperature remains constant.

Mathematically, P1 V1 = P2 V2

P1 = 150 kPa = 150 *10^3 Pa

V1 = 2.48 L

V2 = 2.98 L

P2 = ?

Rearranging the equation, we obtain;

P2 = P1 V1 / V2

P2 = 150 kPa * 2.48 / 2.98

P2 = 372 *10 ^3 / 2.98

P2 = 124.8 kPa.

The new pressure of the gas when at a height which increases the volume of the helium gas to 2.98 L is 124.8 kPa.

6 0
3 years ago
Misconceptions about psychological disorders ​
exis [7]

Answer:

Explanation:

Misconception #1: Mental illnesses aren't real.

Misconception #2: Youth can't experience mental illness.

Misconception #3: Mental illness is a sign of weakness.

Misconception #4: People living with a mental illness will never get better

4 0
3 years ago
Human reaction time is usually about 0.18 s. If your lab partner holds a ruler between your finger and thumb and releases it fro
Marizza181 [45]

Answer:

–0.16 m

Explanation:

From the question given above, the following data were obtained:

Time (t) = 0.18 s

Acceleration due to gravity (g) = –9.81 m/s²

Height (h) =?

We can obtain how far the ruler will fall by using the following equation:

H = ½gt²

H = ½ × –9.81 × 0.18²

H = ½ × –9.81 × 0.0324

H = –0.16 m

Thus, the ruler will fall –0.16 m before you will catch it.

7 0
3 years ago
The substance in acid rain that makes it more acidic than natural rainwater is _____.
sasho [114]
I’m pretty sure it’s sulphur dioxide
4 0
3 years ago
Read 2 more answers
What halide would undergo dehydrohalogenation to give 2-pentene as a pure product?
statuscvo [17]
CH3-CH=CH-CH2-CH3 <--------CH3-CH2-CHCl-CH2_CH3
                                             3-Cl-pentane , 3-Hal-pentane 
4 0
3 years ago
Read 2 more answers
Other questions:
  • It’s is the same one from my recent ones
    9·1 answer
  • Silicon has three naturally occurring isotopes. Silicon-28 has a mass of 27.98 and a relative abundance of 92.23%. Silicon-29 ha
    7·2 answers
  • Why does the ice melt when you hold it in your hand? A.Heat is transferred from your hand to the ice cube. B.Heat from the ice c
    9·1 answer
  • As AgNO3 dissolves how does the temperature of the solution change
    11·1 answer
  • Ri
    6·1 answer
  • Which of the following statements is true?
    12·1 answer
  • Why are people not able to skip a dive to the deepest part of the ocean
    12·1 answer
  • Consider the following equilibrium: 2SO^2(g) + O2(9) = 2 SO3^(g)
    13·1 answer
  • The Arrhenius plot of the reaction has a downward slope of 1.5 x104. Calculate the time required to reduce the concentration of
    10·1 answer
  • 32. Why do you think the Cl-ion is larger than a neutral Cl atom?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!