monica12mrp4oty1 monica12mrp4oty1

25-02-2018
Chemistry

contestada

Calculate the amount of heat required to heat a 3.2kg gold bar from 29Celsius to 64Celsius. Specific heat capacity of gold is 0.128J/g Celsius .

Respuesta :

Dejanras Dejanras

06-03-2018

Answer is: the amount of heat required to heat the gold is 14336 J.
m(Au) = 3,2 kg · 1000 g/kg = 3200 g.
ΔT = 64°C - 29°C = 35°C.
C = 0,128 J/g·°C.
Q = m(Au) · ΔT · C.
Q = 3200 g · 35°C · 0,128 J/g·°C.
Q = 14336 J = 14,336 kJ.

Answer Link

Otras preguntas

Brianna had a garden box in her back yard that is 8 feet by 12 feet. This summer she decides that it is too big and wants to reduce it by a scale factor of 1/2.

True or false federal courts include the district courts the U.S court of appeals and the Supreme Court

How many terms are in the expression below? 2x + 3y - 4xy - 10 Question 1 options: A. 2 B.3 C.4 D.5

Non-essential values in the boot sector of a FAT file system may or may not be correct. True False

Where do the microtubules of the spindle originate during mitosis in animal cells?

-3.1x+7-7.4x=1.5x-6(x-3/2)

What conditions are needed to form organic molecules from inorganic molecules

Write an equation for the line parallel to the given line that contains C. C(-4,6); y=2/3x-2

Nina’s dog eats 1/6 lb of dog food twice a day. If Nina buys a 20 lb bag of dog food how many days will the bag feed her dog? How do you get the answer?

Estimate the sum of 327+419+173 ASAP