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
fgiga [73]
3 years ago
6

Which of these statements is true about heat. 1. Heat always flows from cooler to warmer substances. 2. Heat doesn’t flow betwee

n substances. 3. Heat always flows from warmer to cooler substances. 4. Heat flows when both substances have the same temperature.
Chemistry
2 answers:
Oksana_A [137]3 years ago
7 0
 heat flows<span> from the </span>warmer<span> body to the </span>cooler<span> body </span>
elena55 [62]3 years ago
4 0

Answer: Option (3) is the correct answer.

Explanation:

The statement heat always flows from warmer to cooler substances is true.

When a hot substance is placed in contact with a cooler substance then exchange of heat takes place from warmer to cooler substance until thermal equilibrium is reached.

The molecules of warmer substance collide rapidly with each other. When a cooler substance is placed in touch with it then the molecules of warmer substance starts to collide with the molecules of cooler substance.

As a result, the molecules of cooler substance also gain energy. Hence, there will be exchange of energy from warmer substance to cooler substance.

This exchange of energy will continue till the temperature of both warmer and cooler substance becomes equal. After that there will be no exchange of heat.

Therefore, we can conclude that heat always flows from warmer to cooler substances.

You might be interested in
Give me a paragraph on what people do when using slim fast?
leonid [27]
With the Slimfast plan, you eat two Slimfast meal replacements, three 100-calorie snacks (Slimfast snack bars, fruits, veggies, or even nuts), and one 500-calorie meal that you provide. With this plan you can eat 6 times per day. The program says you can lose a safe 1 to 2 pounds per week with this strategy.
5 0
2 years ago
Why do molecular compounds have low melting points and low boiling points relative to ionic substances?​
kap26 [50]

Answer:

The melting and boiling points of molecular compounds are generally quite low compared to those of ionic compounds. This is because the energy required to disrupt the intermolecular forces between molecules is far less than the energy required to break the ionic bonds in a crystalline ionic compound

4 0
2 years ago
Which statement describes an eletron
Vitek1552 [10]
An electron carries a negative power to the atom. in each atom, the amount of protons and electrons are usually evened out so the atom is stable. the electrons of an atom are also found on the outside ring of an atom, unlike protons and neutrons, which are inside the atom. glad to help! :)
4 0
3 years ago
Is an apple a pure substance or a mixture?
guajiro [1.7K]
An apple would be a mixture. While a mixture is a combination of elements and substances, a pure substance acts as an element itself, therefore, having the properties of only THAT certain element. 


6 0
2 years ago
Read 2 more answers
11. Which of the following statements describe anions? Select all that apply.
Sveta_85 [38]
The two first ones because it’s always the opposite
4 0
2 years ago
Other questions:
  • The element, boron, is represented by which of the following chemical symbols? Be Br B Ba
    14·2 answers
  • The percentage of oxygen by mass in water is greatest when
    7·1 answer
  • A sample of an element has a mass of 34.261 grams and a volume of 3.8 cubic centimeters. To which number of significant figures
    6·1 answer
  • Initially, 0.740 mol of A is present in a 5.00 L solution. 2 A ( aq ) − ⇀ ↽ − 2 B ( aq ) + C ( aq ) At equilibrium, 0.200 mol of
    6·1 answer
  • assuming ideal behavior, calculate the boiling point in C of solution that contains 64.5g or the non-volatile non-electrolyte qu
    10·1 answer
  • What is the correct formula for potassium sulfite? khso khso4 k2so4 k2so3
    11·2 answers
  • RUIGA GIRLS
    13·1 answer
  • determine the total water hardness in a 25.00 mL sample of water that require 12.45 ml of 0.01111m edta for titration
    13·1 answer
  • What is Sublimation?-.-​
    15·1 answer
  • 12.3 moles of sodium is what mass of Na?​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!