sultanacasclkwqd sultanacasclkwqd
  • 04-05-2021
  • Physics
contestada

How much energy is needed to melt 150 g of ice at 0°C to water? (1)(Lf =3.34˟ 10⁵ J/Kg)
50 100 000J
50.1J
50 100J
501000 J
5 min

Respuesta :

asuwafohjames
asuwafohjames asuwafohjames
  • 09-05-2021

Answer:

5.01×10⁴ J.

Explanation:

Applying,

q = Cm....................... Equation 1

Where q = amount of heat needed to melt the ice, m = mass of the ice, C = specific latent heat of ice.

From the question,

Given: m = 150 g = (150/1000) kg = 0.15 kg, C = 3.34×10⁵ J/kg

Substitute these values into equation 1

q = (0.15×3.34×10⁵)

q = 0.501×10⁵ J

q = 5.01×10⁴ J.

Answer Link

Otras preguntas

a debate proposing the motion that anti corruption agencies in Nigeria are effective​
find the solution to the system of equations. y= -7x + 3 y= -x - 3
What is equivalent to the expression 5x - 4 - 9x +7 A. 4x + 3 B. -4x - 3 C. -4x + 3 D. -x E. x
Two cars started to move towards each other at the same time. The speed of the first car was twice the speed of the second car. They met in 2 hours. If the dist
What new labour-saving devices were introduced in the agricultural revolution?
I didn't fix the problem.(change it into passive)​
A company issues 1 million shares of common stock with a par value of $0.02 for $15 a share. The entry to record this transaction includes a debit to Cash for:
question 3 chemistry help
Correct answer gets brainliest and 5 star
[tex]B=(\frac{-3}{16} x^{2} y) . (4x^{4}y^{3})[/tex]