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
Charra [1.4K]
3 years ago
14

If a reaction releases 675,000 Joules, how many kcal does it release?

Chemistry
1 answer:
Mamont248 [21]3 years ago
5 0

Answer: If a reaction releases 675,000 Joules then it means it releases 161.328872 kcal.

Explanation:

According to the standard conversion,

1 Joule = 0.000239006 kcal

Therefore, 675,000 Joules will be converted into kcal as follows.

1 Joule = 0.000239006 kcal\\675,000 J = 675000 J \times \frac{0.000239006 kcal}{1 J}\\= 161.328872 kcal

Thus, we can conclude that if a reaction releases 675,000 Joules then it means it releases 161.328872 kcal.

You might be interested in
How many moles are in 20 grams of argon​
Sladkaya [172]

Answer:

There are 0.5 mole in 20g of argon.

Explanation:

40 g of argon = 1mole

Then 20g of argon is,

→ 1/40 × 20

→ 0.5 mole

5 0
2 years ago
How ph relate with poh
mylen [45]
<span>The "p" in pH and pOH stands for "negative logarithm of" and is used to make it easier to work with extremely large or small values. pH and pOH are only meaningful when applied to aqueous (water-based) solutions. </span>
3 0
3 years ago
Read 2 more answers
Check all statements below that are true.
docker41 [41]

Answer:

The answers are A,B,C.

Explanation: Just got it right on Edge 2020

3 0
3 years ago
If the density of a certain spherical atomic nucleus is 1.0 _ 1014 g cm_3 and its mass is 2.0 _ 10_23 g, what is its radius in c
melamori03 [73]
1) Calculate the volume from d = m/V => V = m/d = 2.0*10^-23 g /  1.0*10^14 g/cm^3 = 2.0*10^-9 cm^3

2) Now use the formula of volume for a sphere: V = (4/3)π(r^3) =>

r =∛[3V/(4π)] = ∛[(3*2.0*10^-9 cm^3) / (4π)] = 0.48*10^-3 cm = 4.8*10^-4 cm = 0.00048cm
5 0
3 years ago
The smallest group of particles in a crystal that retains the shape of the crystal is called the
kotykmax [81]
The answer is B. Unit cell.
Hoped I Helped!
5 0
3 years ago
Read 2 more answers
Other questions:
  • How to write 310,763,136 in expanded form
    13·2 answers
  • Which of these limiting factors is MOST likely to affect low-growing plants in a tropical forest? Group of answer choices air wa
    6·1 answer
  • The reduction of nitrogen monoxide is described by the following chemical equation: 2H2 (g) +2NO (g) 2H20 ()N2 (g Suppose a two-
    12·1 answer
  • Express the frequency in inverse seconds of n=4 to n=3
    14·1 answer
  • What do you think of my lab report so far?
    6·2 answers
  • You notice that you cannot read your book through a test tube of fluid held against the print, making it so blurred as to be unr
    8·1 answer
  • Which particle j j Thomson discovered
    14·2 answers
  • Calculate the work when a cylinder equipped with a piston changes volume from 0.200 L to 0.600 L against an external pressure of
    15·1 answer
  • Arrange He,Br2 and NaCl in increasing boiling point and explain why
    7·1 answer
  • 4. How can you calculate the solubility of a gas in a liquid under different<br> pressures
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!