All categories

3 years ago

How much heat is required to convert 0.3 kilogram of ice at 0°C to water at the same temperature

Physics

2 answers:

Grace [21]3 years ago

6 0

Answer:

100,200J of heat is required to convert 0.3kg of ice of 0°C to water at same temperature.

Explanation:

Heat = mass * lf

Latent heat of fusion (lf) of water is 334J/g

Heat = 300g * 334 J/g

Heat = 100,200J of heat

irina1246 [14]3 years ago

6 0

Answer:

100800 J

Explanation:

Specific Latent heat of fusion of water: This is the quantity of heat required to change the unit mass of water from ice to liquid without change in temperature.

The expression for Specific latent heat of fusion is given as

Q = Cm...................... Equation 1

Where Q = Amount of heat, C = Specific latent heat of fusion of ice, m = mass of ice.

Given: m = 0.3 kg,

Constant: C = 336000 J/kg

substitute into equation 1

Q = 336000(0.3)

Q = 100800 J.

You might be interested in

Which discovery did Galileo make to support the theory that the planets, including Earth, orbit the Sun?

const2013 [10]

The answer to your quesiton is,

A) Venus has phases.

-Mabel <3

7 0

3 years ago

Read 2 more answers

Question 1 of 28

amm1812

Answer: D. They are the coldest stars.

Explanation:

5 0

2 years ago

Each value in nature has a number part, called its____ and a dimension, or unit

saul85 [17]

Answer:

Magnitude

Explanation:

Each value in nature has a number part, called its magnitude and a dimension called its unit.

For example,

The length of an object is 10 cm. It means that 10 shows the magnitude of length and cm shows its unit.

7 0

3 years ago

You drop a rock down a well that is 5.4 m deep. How long does it take the rock to hit the bottom of the well?

Natali5045456 [20]

Equation of motion:

$y_{f}=y_{o}+v_{o}t+ \frac{1}{2} at^{2}$

Since initial velocity is zero, the second term goes away:

$y_{f}=y_{o}+0+ \frac{1}{2} at^{2}$

$y_{f}=y_{o}+\frac{1}{2} at^{2}$

$y_{f}-y_{o}= \frac{1}{2} at^{2}$

$y_{f}-y_{o}=5.4m$

$5.4m= \frac{1}{2} at^{2}$

$\frac{2(5.4m) }{a} = t^{2}$

$a = g = 9.81 \frac{m}{ s^{2}}$

$\frac{2(5.4m) }{9.81 \frac{m}{ s^{2} } } = t^{2}$

$1.1 s^{2} = t^{2}$ $\sqrt{1.1 s^{2}} = \sqrt{t^{2}}$

 $t = 1.05s$ 

4 0

3 years ago

Read 2 more answers

Describe how electromagnetic waves are formed and travel through space.

Maslowich

Answer:

Electromagnetic waves are created by a charged particle that generates an electric field. The electric field creates a magnetic field. As the charged particle moves, the electric field and magnetic field keep changing, which causes the wave to move.

Explanation:

I just answered the question and this is the sample response

4 0

3 years ago

Read 2 more answers