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
frutty [35]
3 years ago
10

A researcher studying the nutritional value of a new candy places a 4.60 g sample of the candy inside a bomb calorimeter and com

busts it in excess oxygen. The observed temperature increase is 2.69 ∘ C. If the heat capacity of the calorimeter is 32.20 kJ ⋅ K − 1 , how many nutritional Calories are there per gram of the candy?
Physics
1 answer:
blagie [28]3 years ago
8 0

Answer:

4500.5 nutritional calories per gram

Explanation:

Heat lost by the new candy = heat gained by the bomb calorimeter.

Heat gained by the bomb calorimeter = c×ΔT

where c = heat capacity of the calorimeter = 32.20 KJ/K = 32200 J/K

ΔT = change in temperature = 2.69°C = 2.69 K.

Heat gained by the bomb calorimeter = 32200 × 2.69 = 86618 J

Heat lost by the new candy = heat gained by the bomb calorimeter = 86618 J = 20702.2 calories

4.60 g of the new candy lost this amount of calories by undergoing combustion,

The amount of calories per g = 20702.2 calories/4.6 g = 4500.5 calories per gram

You might be interested in
Recall that the differential equation for the instantaneous charge q(t) on the capacitor in an lrc-series circuit is l d 2q dt 2
Aloiza [94]
DE which is the differential equation represents the LRC series circuit where
L d²q/dt² + Rdq/dt +I/Cq = E(t) = 150V.
Initial condition is q(t) = 0 and i(0) =0.
To find the charge q(t)  by using Laplace transformation by
Substituting known values for DE
L×d²q/dt² +20 ×dq/dt + 1/0.005× q = 150
d²q/dt² +20dq/dt + 200q =150
5 0
3 years ago
If the speed of light in a substance is 2.26 x 10^8 m/s, what is the index of refraction of that substance?
vladimir1956 [14]

Answer:

1.33

Explanation:

speed of light in vacuum, c = 3 x 10^8 m/s

speed of light in medium, v = 2.26 x 10^8 m/s

The refractive index of the medium is given by

μ = speed of light in vacuum / speed of light in medium

μ = (3 x 10^8) / (2.26 x 10^8)

μ = 1.33

4 0
3 years ago
Suppose Galileo dropped a lead ball (100 kilograms) and a glass ball (1 kilogram) from the Leaning Tower of Pisa. Which one hit
pogonyaev
If he dropped them both at the same time, then as close as anyone could tell, they both hit the ground at the same time.
8 0
3 years ago
A stone is dropped from the top of a cliff. the splash it makes when striking the water below is heard 3.5 s later. the speed of
Margaret [11]

The answer would be 55

4 0
3 years ago
Help me with this question please
SpyIntel [72]

Answer:

the answer is A, 9.5 units

4 0
3 years ago
Other questions:
  • what velocity must a 1340kg car have in order to havw the same momentum as a 2680 kg truck traveling at a velocity of 15m/s to t
    12·1 answer
  • A 5 m3 tank containing 5kg of an unknown ideal gas at 500 kPa is connected through a valve to another tank containing 10 kg of t
    14·1 answer
  • We know that every object exerts an attraction on every other object and the heavier the object ___ the attraction.
    9·1 answer
  • What is the speed of light in a vacuume?
    12·1 answer
  • When white light is passed through a prism, it will
    6·2 answers
  • The hardest known natural material is _____. <br> jade<br> quartz<br> diamond<br> talc
    13·2 answers
  • NaOH + FeCl3* Na Cl + Fe 10H)3<br> balanced
    6·1 answer
  • Which of the following is an example of a luminous object? <br>Dog<br> Tree <br>Candle <br>Moon​
    15·1 answer
  • What to do if one day your partner wants you but the next day are unsure about you should I try to make it work or leave ..
    5·1 answer
  • Một mẫu vật liệu có khối lượng riêng là 2500kg/m3
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!