brendonmx8892 brendonmx8892

18-05-2018
Chemistry

contestada

If 89.6 joules of heat are needed to heat 20 g of iron from 30 c to 40 c, what is the specific heat of the iron in j/cg

Respuesta :

mkryukova19 mkryukova19

18-05-2018

Q=cmΔt

Q=89.6 J
m=20g
Δt=t(final)-t(initial)=40-30=10⁰ C

89.6 J=c*20g*10⁰ C

c= 89.6 J/(20g*10⁰ C)=0.448 J/(g*⁰C)

Answer Link

Otras preguntas

the offical count of people of a country is called a

My_____ sister is in the hospital. Here are the to chooses (old/oldest)

A certain radioactive substance has a half life of one hour.if you start with 1g of the material at noon how much will be left at 3:00 PM?

Cape Agulhas is the southernmost point on which continent?

Besides the cell mwmbrane, two components of all cells are

Use the following test scores. Find the mean, median score, mode, and spread. Round to the nearest whole number. 100 96 58 95 60 95 69 88 71 95 85 93 91 78 78 8

the population of mastertown was 23,000 in 2012. assume that mastertowns population increases at a rate of 2% per year. write an equation to model the populatio

A China cup and saucer cost 12$. The cup on its own cost 3$ more than the saucer. Form an eqaution for s and solve it. Find the cost of the cup

Sam left his school at 3:05. He walked at a speed of 3.2 mph. 15 minutes later, Al started running after him, and he caught up with Sam 10 minutes later. What w

Translate the following words to algebra symbols, using "n" as the variable. The product of six and a number is 24.