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
Amiraneli [1.4K]
2 years ago
6

How many calories are released when 6 grams of 100°C steam turns to 0°C ice?

Physics
1 answer:
maks197457 [2]2 years ago
6 0

Answer: 4276.2 calories

Explanation:

Given

mass of steam is 6 gm at 100^{\circ}C

Conversion of steam to ice involves

  • steam to water at 100^{\circ}C
  • water at 100^{\circ}C to water at 0^{\circ}C
  • water to the ice at 0^{\circ}C

Calories released during the conversion of steam to water at 100^{\circ}C

E_1=mL_v\quad [L_v=\text{latent heat of vaporisation}]\\E_1=6\times 533=3198\ cal.

Calories released during the conversion of water at 100^{\circ}C to water at 0^{\circ}C

E_2=mc(\Delta T)\quad [c=\text{specific heat of water,}1\ cal./gm.^{\circ}C]\\E_2=6\times 1\times 100=600\ cal.

Calories released during the conversion of water to the ice at 0^{\circ}C

E_3=mL_f\quad [L_f=\text{latent heat of fusion}]\\E_3=6\times 79.7=478.2\ cal.

The total energy released is

E=E_1+E_2+E_3\\E=3198+600+478.2=4276.2\ cal.

You might be interested in
Under metric prefixes, if a meter were divided into 100 equal-sized subunits, a single unit would be called a
joja [24]

Answer:

In metric prefixes, if a meter were divided into 100 equal-sized subunits, a single unit would be called a centimeter.

Explanation:

Here we asked to divide 1 meter in to 100 equal parts.

Let us find out what is the length of piece when 1 m is divided in to 100 equal parts.

Length

l =  \frac{1}{100}  = 0.01m

That is length of 1 m divided into 100 equal parts is 0.01m.

We know that 0.01 m is 1 centimeter.

So, in metric prefixes, if a meter were divided into 100 equal-sized subunits, a single unit would be called a centimeter.

5 0
3 years ago
A(n) 9.9 g bullet is fired into a(n) 138 g block of wood at rest on a horizontal surface and stays inside. After impact, the blo
kompoz [17]

Answer:

185.25 m/s

Explanation:

consider the motion of the combination of bullet and block after the collision

v₀ = initial speed just after the collision

v' = final speed = 0 m/s

μ = Coefficient of friction = 0.6

g = acceleration due to gravity = 9.8 m/s²

a = acceleration of the combination = - μ g = - (0.6) (9.8) = - 5.88 m/s²

d = stopping distance = 13 m

using the kinematics equation

v'² = v₀² + 2 a d

0² = v₀² + 2 (- 5.88) (13)

v₀ = 12.4 m/s

m = mass of the bullet = 9.9 g = 0.0099 kg

M = mass of the wood = 138 g = 0.138 kg

v = speed of bullet before collision

v₀ = speed of combination after the collision = 12.4 m/s

Using conservation of momentum

m v = (m + M) v₀

(0.0099) v = (0.0099 + 0.138) (12.4)

v = 185.25 m/s

3 0
2 years ago
A _ increases it decreases voltage in a power line
Levart [38]
A transformer increases and decreases voltage.
5 0
3 years ago
PLEASE PLEASE HELP AND PUT A REAL ANSWER ;-;. ALSO WILL GIVE BRAINLEST!!
uysha [10]

Answer:

Troposphere

High-pressure areas form due to downward motion through the troposphere, the atmospheric layer where weather occurs.

3 0
2 years ago
Read 2 more answers
What are the different types of Energy transformations and Energy Transfers?
Harman [31]

Explanation:

Here are some of the ways that energy can change (transform) from one type to another:

The Sun transforms nuclear energy into heat and light energy.

Our bodies convert chemical energy in our food into mechanical energy for us to move.

An electric fan transforms electrical energy into kinetic energy.

7 0
3 years ago
Other questions:
  • There is a go cart being driven with a momentum of 4500 kgm/s. If the cart's
    12·2 answers
  • An element
    14·1 answer
  • A beam of helium-3 atoms (m = 3.016 u) is incident on a target of nitrogen-14 atoms (m = 14.003 u) at rest. During the collision
    6·1 answer
  • Which of these is an example of electromagnetic induction? A current passing through a resistor uses power IR2. A current throug
    11·1 answer
  • Looking for some help with this :)
    10·1 answer
  • (True/False) According to Newton’s third law of motion, it is true that an object moving at a constant speed in a straight path
    8·1 answer
  • A light ray in medium 1 striking a boundary at an angle of theta Subscript 1 Baseline. In medium 2 is a second light ray that is
    15·1 answer
  • Examples for each different examples force affects​
    10·1 answer
  • An aeroplane cruises at normal speed. Upon fl ying into turbulent (unstable) air, it suddenly drops downwards vertically. Passen
    11·1 answer
  • If every one-point change in the federal funds rate alters aggregate demand by $200 billion, how far did AD shift in response to
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!