How many joules of heat are required to raise the temperature of 174g of gold from 22°C to 85°C? The specific heat of gold is 0.129 J/g°C.

Question

starr5427 starr5427

06-05-2021
Chemistry

contestada

How many joules of heat are required to raise the temperature of 174g of gold from 22°C to 85°C? The specific heat of gold is 0.129 J/g°C.

Respuesta :

Otras preguntas

The Bill of Rights was promoted by Anti-Federalists to protect individual libertie. True or False.

Ayuda pls cuanto es 278x972

Do you think radio waves and x-rays are types of light?

simplify the following. Please help asap.... 48k^5/3k^7 12c^7d^4?15c^10d^3 (-xy)^4 x (-3x^-2)^3 20 Points!!!!!!!!!!!!!!!!!!!!!!!

Is this correct? Or the remainder must be 17.

why dies red blood cells disk shaped

The number of blocks in a two-dimensional pyramid is a sequence that follows a recursive formula. What is a recursive definition for the sequence?

jezebel is bitter and Resentful. She looks back on her life and realizes that she has made many mistakes and was too fearful to reach for her goals. At 82 years

What steps has Kenya taken to modernize? Write one to two complete sentences, and include the four steps Kenya took to modernize.

What is the circumference of a chips ahoy cookie?

eylumamaho7 eylumamaho7 · Answer 1 · 2021-05-06T23:59:05+02:00

Remembering the equation Q=MCdeltaT where
q=is the amount of heat energy
M=mass
C=specific heat
deltaT= change in temperature

Therefore, using the equation we can substitute values and solve for q.
Q= (15 grams) (0.129 J/(gx°C))(85-22)
Q=(15) ((0.129 J/(gx°C)) (63)
Q=121.9 Joules

The energy needed to raise the temperature of 15 grams of gold from 22 degrees Celsius to 85 degrees Celsius is then 121.9 Joules or 122 Joules (if rounded up).