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
allsm [11]
3 years ago
9

Given the law of conservation of energy, what happens when a 200°C iron bar is placed in thermal contact with a 30°C block of wo

od?
O A
Energy leaves the iron bar and enters the wood until the temperatures are equal,
OB
Energy leaves the wood and enters the iron bar until the temperatures are equal.
O
C.
All the energy from the iron bar is transferred to the wood.
O
D.
All the energy from the wood is transferred to the iron bar.
Chemistry
1 answer:
kozerog [31]3 years ago
7 0

Answer:

The correct answer is A Energy leaves the iron bar and enters the wood until the temperature are equal.

Explanation:

According to the law of conservation of energy or the first law thermodynamics energy neither be created nor destroyed, energy is transferred from one form to another form.

        Here iron bar is placed in wood block energy is transferred from iron bar to wood until the temperatures are equal.

You might be interested in
7.<br> How many grams are contained in 3.9 x 1023 sulfur atoms?<br> atoms → moles<br> grams<br> I
Anni [7]

Answer: 20.775 g S

Explanation: 3.9x10^23 atoms = 0.648 mol

Atomic mass S = 32.08

S in grams = 20.775

4 0
3 years ago
What do we need to learn about inclined planes
Troyanec [42]

Answer: Inclined plane, simple machine consisting of a sloping surface, used for raising heavy bodies. The force required to move an object up the incline is less than the weight being raised, discounting friction. The steeper the slope, or incline, the more nearly the required force approaches the actual weight.

Explanation:

4 0
3 years ago
Which of the following elements has the highest electronegativity?
olga55 [171]
Bromine has the highest
6 0
3 years ago
Measure the initial temperature of the water to the
LuckyWell [14K]

Answer:

Answer:

100

22.4

27.1

Explanation:

Explanation:

just did it on edge .

Hope this helps

8 0
3 years ago
How much heat do you need to raise the temperature of 100g of aluminum from 30 C to 150 C
SVEN [57.7K]

Answer:

Q = 10.8 KJ

Explanation:

Given data:

Mass of Al= 100g

Initial temperature = 30°C

Final temperature = 150°C

Heat required = ?

Solution:

Specific heat of Al = 0.90 j/g.°C

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 150°C - 30°C

ΔT = 120°C

Q = 100g×0.90 J/g.°C× 120°C

Q = 10800 J       (10800j×1KJ/1000 j)

Q = 10.8 KJ

4 0
3 years ago
Read 2 more answers
Other questions:
  • How many moles of n are in 0.195 g of n2o?
    15·2 answers
  • Tetraphosphorous decoxice (P4O10) reacts with water to produce phosphoric acid.
    15·1 answer
  • How many Magnesium are in 10MgCI2
    5·2 answers
  • Is this equation balanced and in the lowest form? 4NH3 → 2N2 + 6H2 Yes, because there are equal amounts of atoms of each element
    13·2 answers
  • Calculate the percentage of a solution formed by dissolving 10g of glucose in 240g of water
    13·1 answer
  • What happens to the acidity of solutions A and B after dry ice is added? The pH of solution A decreases, and the pH of solution
    12·2 answers
  • Help me solve this question​
    12·1 answer
  • Questions on Electrolysis, pls help if you can!!​
    8·1 answer
  • During what stage of the life cycle is an animal able to reproduce? (2 points) a Adolescent b Adult c Embryo d Infant
    7·1 answer
  • A gas has a volume of 840 mL at -38°C and a pressure of 0.98 atm. If the pressure
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!