sandriyathomas2062 sandriyathomas2062
  • 03-07-2019
  • Physics
contestada

Water at 0°C loses 1140 calories worth of heat. How much of the water freezes? [Lf= 79.7 cal/g] a) 16.8 g b) 81.5 g c) 0.002 g d) 14.3 g e) 51.0 g

Respuesta :

Vespertilio Vespertilio
  • 06-07-2019

Answer:

option d)

Explanation:

The amount of heat required to convert the 1 g of ice at 0 degree C to 1 g water at 0 degree C is called latent heta of fusion.

H = m Lf

where,, h is the heat required, m is the mass and Lf is the latent heat of fusion

1140 = m x 79.7

m = 14.3 g

Answer Link

Otras preguntas

Select the statement that best describes homeostasis: A. internal mechanisms that decrease physiological variables. B. prevention of changes from happening wit
I need help plz only one question
a x 10² + b x 10⁴ = c X 10⁴Express c in terms of a and b.​
Find the terminal speed of the rod if it has mass m = 2.8 grams , length l = 21 cm , and resistance R = 0.0011 Ω . It is falling in a uniform horizontal field B
How many L of carbon dioxide at 1.00 atm and 298.15 K are released from a car's engine upon consumption of a 60.0 L LIQUID tank gasoline? (Gasoline density: 0.7
a gain of 180 feet is what?
A football team gained 7 1/2 yards in one play, and then lost 3/5 of a yard in the next play.
How does lighting work?
Which is an example of irony? A. A man enters a hot-dog-eating contest but decides that he doesn't want to pay the entrance fee. O B. The shyest girl in school
A die is tossed two times and the number appearing on the die is noted each time. What is the probability that the sum of two numbers so obtained is greater tha