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
Tomtit [17]
2 years ago
9

Calculate the amount of heat needed to raise the temperature of 4 ml of water from 10C to 30C

Chemistry
1 answer:
Over [174]2 years ago
4 0

Answer:

Q=80cal

Explanation:

Hello,

In this case, the relationship between heat, mass, specific heat and change in temperature is understood by:

Q=mCp(T_2-T_1)

In this case, since the involved substance is water, whose specific heat is 1 cal/(g°C), we compute the heat 4 mL of water need to rise the temperature from 10 °C to 30 °C as shown below:

Q=4mL*\frac{1g}{1mL}*1\frac{cal}{g\°C}*(30\°C-10\°C)\\  \\Q=80cal

Best regards.

You might be interested in
Do you think this one experiment is enough to change the scientific theory regarding the speed of light?
devlian [24]

No. The speed of light does change. You mean speed of light in a vacuum. Measuring that value is elementary, in a 2-way measurement, as you show.

7 0
2 years ago
Why do covalent bonds not involve the transfer of electrons
zhannawk [14.2K]
Covalent bonds do not involve electron transfer because in covalent bonds, the electrons are shared between the atoms to form the molecule rather than being transferred to form ions as it is in the case of ionic bonds.<span />
6 0
2 years ago
Read 2 more answers
The body's nervous system is made up of the brain,the spinal cord, the retina ,and many other nerves. The circulatory system is
posledela
<h2>O sistema nervoso do corpo é formado pelo cérebro, pela medula espinhal, pela retina e por muitos outros nervos.</h2><h2> O sistema circulatório é constituído pelo coração, artérias, veias e capilares.  </h2>
8 0
3 years ago
Read 2 more answers
Choose all the correct information concerning chemical reactions: Involves small amounts of energy. Some of the mass is converte
suter [353]
<span>A chemical reactions :
Involves small amounts of energy.
</span><span> Only electrons are involved.
</span><span>The mass remains the same.</span>
8 0
3 years ago
Read 2 more answers
PLEASE HELP, NO BOTS PLEASE
aleksandrvk [35]
Protons: 7
electrons: 7
neutrons: 7
4 0
2 years ago
Read 2 more answers
Other questions:
  • The activation energy for the reaction no2(g)+co(g)⟶no(g)+co2(g) is ea = 100 kj/mol and the change in enthalpy for the reaction
    13·1 answer
  • A urine sample has a mass of 147 g and a density of 1.010 g/ml. what is the volume of this sample?
    8·1 answer
  • 6 types of asexual reproduction
    14·1 answer
  • What reaction is depicted by the given equation:<br> Au3+ + 3e− Au
    13·1 answer
  • What is included in each square (element) on the Periodic Table? I'm looking for four things
    7·1 answer
  • How many subshells are in the n = 4 shell?
    10·1 answer
  • Identify the two main forms of energy which drive the cycling of matter on Earth.
    12·1 answer
  • What does the 2 represent inH2
    14·2 answers
  • The movement of the tectonic plates on the earth is caused by
    13·1 answer
  • CAN someone please help me !!!!!!!!!!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!