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
SOVA2 [1]
2 years ago
10

The amount of heat required to melt lead at it melting temperature is 23.0 kJ/kg. The amount of heat required to melt mercury at

its melting temperature is 11.4 kJ/kg. What is the effect of adding 24 kJ of thermal energy to 1 kg of mercury and lead when each have just reached their melting temperatures?
The addition of 24 kJ of energy will allow all of the mercury and lead to change from solid to liquid. The temperature of each substance will also increase.

The addition of 24 kJ of energy will allow all of the mercury and lead to change from solid to liquid. The temperature of each substance will not change.

The addition of 24 kJ of energy will allow all of the mercury to change from solid to liquid, and some of the lead to change from solid to liquid. Only the temperature of the mercury will increase.

The addition of 24 kJ of energy will allow all of the mercury and lead to change from liquid to gas. The temperature of each substance will increase.
Physics
2 answers:
svet-max [94.6K]2 years ago
4 0

The addition of 24 kJ of energy will allow all of the mercury and lead to change from solid to liquid. The temperature of each substance will also increase.

GarryVolchara [31]2 years ago
3 0

the addition of 24 kj of energy will allow all of the mercury and lead to change from solid to liquid. the temperature of each substance will also increase.

this is the answer as i did the exam and got it right!! thanks to the other person

You might be interested in
How much heat is needed to raise the temperature of 8g of water by 20oC?
Elden [556K]
The following information are given in the question:
Mass, M = 8 g
Temperature, T = 20 degree Celsius
Specific heat of water [this value is a constant] C  = 1 c/gc
Heat, Q = ?
The formula for calculating the amount of heat required is given below:
Q = MCT = 8 * 1 * 20 = 160
Therefore, Q = 160 cal. 
<span />
7 0
3 years ago
Which of the following statements about Masters programs is not correct?
uranmaximum [27]

The correct answer is C. The level of competition is not very high in most Masters  programs.

Explanation:

In sports, the word "master" is used to define athletes older than 30 and that usually are professional or have trained for many years, although novates are also allowed. This means in most cases in Master programs and teams a high level of competition can be expected due to the experience and extensive training of Master athletes. Indeed, many records in the field of sport belong to Master athletes rather than younger athletes. According to this, the incorrect statement is "The level of competition is not very high in most Masters  programs".

7 0
2 years ago
WILL GIVE BRAINLIEST AND 30 POINTS!
frez [133]

Answer:

The answer is 16 and 24

Explanation:

8 0
2 years ago
Read 2 more answers
NEED HELP FAST ILL MARK BRAINLIEST AND RATE 5 STARS AND SAY THANK YOU
sertanlavr [38]
3 is the answer to your question 
4 0
3 years ago
Read 2 more answers
All of the following have been associated with amount of cortisol within the body except __________. A. experiencing problems wi
zhannawk [14.2K]

Answer: B. development of female sex

Development of female sex characteristic is not associated with the amount of cortisol in the body.

Explanation:

Cortisol is a steroid hormone secreted by the adrenal gland. It facilitates stress response, regulates blood sugar level and helps fight infections. High cortisol level leads to Cushing syndrome and low cortisol level leads to Addison disease.

Obesity is a  symptom of Cushing syndrome while weight loss is a symptom of Addison disease. Thus levels of cortisol can affect body weight as well.  When in a stressful situation, our body pumps excess cortisol.

Cortisol level in our body is generally high in the mornings and low in the midnight.

3 0
3 years ago
Read 2 more answers
Other questions:
  • How much kinetic energy does a baseball with a mass of 0.143 kg have it it is traveling at a velocity of 41.1 m/s?
    8·1 answer
  • It takes you 7.7 min to walk with an average velocity of 1.7 m/s to the north from the bus stop to the museum entrance. How far
    15·1 answer
  • Which type of climate does Florida have due to its latitude?
    11·2 answers
  • A piece of charcoal used for cooking is found at the remains of an ancient campsite. A 1.09 kg sample of carbon from the wood ha
    6·1 answer
  • What is the force on a 15.5 kg ball that is falling freely due to the pull of gravity
    14·1 answer
  • Explain each stage of communication process​
    10·1 answer
  • You need to make a very dilute solution of sodium phosphate dihydrate (MW 142 g/mol, FW 178 g/mol). How many grams of sodium pho
    9·1 answer
  • A 163 ‑turn circular coil of radius 2.65 cm and negligible resistance is immersed in a uniform magnetic field that is perpendicu
    5·1 answer
  • What type of em wave travels the fastest?
    7·1 answer
  • A stationary source S generates circular outgoing waves on a lake. The wave speed is 5.0 m/s and the crest-to-crest distance is
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!